[Moto G Q&A, Help & Troubleshooting] Darkshado:
I've decided to dig a bit deeper and I have some interesting findings.

I began by downloading both the Motorola US retail XT1032 and XT1034 stock 4.4 images and started poking around.

NON-HLOS.bin and fsg.mbn are both raw Linux Ext format partition images. (You can read them with a few different tools under Windows or using a loopback device in Linux). Both files have different hashes looking from the outside. Different modification times as well, mere minutes apart.

Extracting the files from the NON-HLOS partition yields two folders: image and lost+found, which is a standard ext partition folder, empty as usual. In image there's the following assortment of files.

2013-12-18 03:44 372 adsp.b00
2013-12-18 03:44 6 760 adsp.b01
2013-12-18 03:44 1 adsp.b02
2013-12-18 03:44 5 054 416 adsp.b03
2013-12-18 03:44 1 284 629 adsp.b04
2013-12-18 03:44 1 097 114 adsp.b05
2013-12-18 03:44 944 adsp.b06
2013-12-18 03:44 908 074 adsp.b07
2013-12-18 03:44 120 adsp.b08
2013-12-18 03:44 7 132 adsp.mdt
2013-12-18 03:44 180 cmnlib.b00
2013-12-18 03:44 6 568 cmnlib.b01
2013-12-18 03:44 101 076 cmnlib.b02
2013-12-18 03:44 4 496 cmnlib.b03
2013-12-18 03:44 6 748 cmnlib.mdt
2013-12-18 03:44 180 keymaster.b00
2013-12-18 03:44 6 568 keymaster.b01
2013-12-18 03:44 16 280 keymaster.b02
2013-12-18 03:44 176 keymaster.b03
2013-12-18 03:44 6 748 keymaster.mdt
2013-12-18 03:44 236 368 mba.b00
2013-12-18 03:44 84 mba.mdt
2013-12-18 03:44 980 modem.b00
2013-12-18 03:44 7 368 modem.b01
2013-12-18 03:44 96 660 modem.b02
2013-12-18 03:44 4 155 332 modem.b03
2013-12-18 03:44 6 894 268 modem.b04
2013-12-18 03:44 81 920 modem.b05
2013-12-18 03:44 164 956 modem.b08
2013-12-18 03:44 54 528 modem.b11
2013-12-18 03:44 105 208 modem.b13
2013-12-18 03:44 1 188 792 modem.b15
2013-12-18 03:44 904 120 modem.b16
2013-12-18 03:44 9 129 008 modem.b17
2013-12-18 03:44 663 456 modem.b18
2013-12-18 03:44 73 728 modem.b19
2013-12-18 03:44 5 376 modem.b20
2013-12-18 03:44 3 819 304 modem.b21
2013-12-18 03:44 1 993 464 modem.b22
2013-12-18 03:44 143 360 modem.b25
2013-12-18 03:44 911 852 modem.b26
2013-12-18 03:44 229 023 modem.b27
2013-12-18 03:44 8 348 modem.mdt
2013-12-18 03:44 180 prov.b00
2013-12-18 03:44 6 568 prov.b01
2013-12-18 03:44 26 836 prov.b02
2013-12-18 03:44 92 prov.b03
2013-12-18 03:44 6 748 prov.mdt
2013-12-18 03:44 340 wcnss.b00
2013-12-18 03:44 6 728 wcnss.b01
2013-12-18 03:44 10 308 wcnss.b02
2013-12-18 03:44 45 056 wcnss.b04
2013-12-18 03:44 34 112 wcnss.b06
2013-12-18 03:44 2 841 068 wcnss.b07
2013-12-18 03:44 12 wcnss.b08
2013-12-18 03:44 7 068 wcnss.mdt
2013-12-18 03:44 180 widevine.b00
2013-12-18 03:44 6 568 widevine.b01
2013-12-18 03:44 116 368 widevine.b02
2013-12-18 03:44 756 widevine.b03
2013-12-18 03:44 6 748 widevine.mdt

A comparison in WinMerge reveals that all the files on both the XT1032 and XT1034 variants are identical.

fsg.mbn contains the following files:

2013-12-18 03:59 38 451 0.img.gz
2013-12-18 03:59 1 061 bundle_release
2013-12-18 03:59 53 711 falcon_1.img.gz
2013-12-18 03:59 56 369 falcon_3.img.gz
2013-12-18 03:59 51 590 falcon_6.img.gz
2013-12-18 03:59 53 655 falcon_aio_1.img.gz
2013-12-18 03:59 53 692 falcon_att_1.img.gz
2013-12-18 03:59 53 722 falcon_concel_1.img.gz
2013-12-18 03:59 50 629 falcon_repub_cdma_3.img.gz
2013-12-18 03:59 51 590 falcon_retusa_aws_6.img.gz
2013-12-18 03:59 53 711 falcon_retusa_glb_1.img.gz
2013-12-18 03:59 53 608 falcon_sprint_3.img.gz
2013-12-18 03:59 51 658 falcon_tmo_6.img.gz
2013-12-18 03:59 51 612 falcon_trac_aws_6.img.gz
2013-12-18 03:59 53 922 falcon_trac_cdma_3.img.gz
2013-12-18 03:59 55 354 falcon_usc_3.img.gz
2013-12-18 03:59 56 369 falcon_verizon_3.img.gz
2014-01-30 00:01 <DIR> lost+found
2013-12-18 03:59 995 repack

bundle_release is identical across both models, it's a text file that contains some build information along with MD5 hashes for the img.gz files listed above. These hashes do not match the files. repack is different from the XT1032 to the XT1034 image, but their MD5 hashes match the .img.gz files they came with.

Decompressing the img.gz files yields a series of fsg_signed.img files. Those from the XT1032 match those from the XT1034 exactly.

In conclusion: any conversion, if possible, is going to involve playing with other partitions present on the phone but not in the stock images, and perhaps some Qualcomm-specific tools like QPST.

That's about all I can do without a pair of actual devices on hand.

Goodbye,

Darkshado