[Optimus One, P500 Original Android Development] post-mortem:
I have the following files, lemme know what you want:

Folder PATH listing
Volume serial number is BA59-74C6
C:.
| gapps-gb-20110828-signed.zip
|
+---Arjen
| cm-9-20130120-UNOFFICIAL-p505.zip
| gapps-ics-20120429-signed.zip
| lgp505icskernel-14062012.zip
| lgp505icskernel-19062012.zip
|
+---CM10.1
| \---Rashed
| cm-10.1-20130131-EXPERIMENTAL-p505.zip
|
+---CM9
| gapps-ics-20120224-signed.zip
|
+---Hardlight
| cm-9.1-CyberICS-3.0-HardLight-p500.zip
|
+---hephappy
| cm-9.1.7-GenetICS-HardLight-p500-ODEXED.zip
| cm-9.2.0-ICS-PLUS-p500.zip
| cm-9.2.1-ICS-PLUS-p500.zip
| cm-9.2.2-ICS-PLUS-p500.zip
| video-thumbnail-fix.zip
|
+---Kernels
| +---DJNoXD
| | jenkins-20-android_kernel_lge_msm7x27-3.0.x-p505_506-signed.zip
| | jenkins-44-candiedIce-kernel-p505-p506-signed.zip
| | jenkins-candiedIce-kernel-p505-p506-42-signed.zip
| | jenkins-candiedIce-kernel-p505-p506-43-signed.zip
| | jenkins-candiedIce-kernel-p505-p506-44-signed.zip
| |
| \---sweetnsour
| kernel-20130408_1704.zip
| version4d-CFS-P505-P506.zip
| version9a-CFS-P505-P506.zip
|
\---Recovery
| KDZ_FW_UPD_EN.7z
| V10E_00.kdz
|
+---Amon Ra
| | amon_ra_recovery_installer.zip
| | PC36IMG.zip
| | recovery-RA-supersonic-v2.3.img
| | [Recovery] [09-Feb-2011] RA-supersonic-v2.3 - xda-developers.html
| | [Recovery] [09-Feb-2011] RA-supersonic-v2.3 - xda-developers.URL
| |
| \---[Recovery] [09-Feb-2011] RA-supersonic-v2.3 - xda-developers_files
| 0.jpg
| 1.jpg
| 2.jpg
| 4.jpg
| ads4.htm
| ads4_002.htm
| ads4_003.htm
| attachment.jpg
| attachment_002.jpg
| avatar1461524_1.gif
| avatar1811933_1.gif
| avatar1815943_1.gif
| avatar2634760_2.gif
| avatar790649_1.gif
| biggrin.gif
| breadcrumbs-arrow.png
| breadcrumbs-home.png
| connection-min.js
| donate.png
| facebook.png
| favoritesTable.css
| fbshare_post.png
| fbshare_thread.png
| forumbuttonview.png
| forum_atf.gif
| forum_atf_002.gif
| gear.gif
| gear_advanced.png
| icon1.gif
| icon10.gif
| jquery.js
| mad.gif
| merged.js
| Mexico.gif
| mh_override.css
| mode_hybrid.gif
| mode_linear.gif
| mode_threaded.gif
| nav-home.png
| news.png
| pagination-arrows-left.png
| pagination-arrows-right.png
| pdf.gif
| phonesCustom.htm
| post_old.gif
| post_thanks.js
| printer.gif
| prototype.js
| reset.css
| rules.png
| s1.js
| sendtofriend.gif
| showPost.css
| sigpic790649_1.gif
| smile.gif
| style3.css
| submit_thread_as_news_tip.png
| suggest.js
| twitter.png
| U.gif
| United%20States.gif
| user_offline.png
| U_002.gif
| vbulletin_global_with_relative_override.js
| vbulletin_important.css
| vbulletin_lightbox.js
| vbulletin_md5.js
| vbulletin_menu_with_relative_positioning.js
| vbulletin_post_loader.js
| viewpost.gif
| votingSystem.js
| widget.css
| widget.js
| yahoo-dom-event.js
|
+---KDZ_FW_UPD_EN
| KDZ_FW_UPD.exe
| KDZ_FW_UPD_log00.txt
| KDZ_FW_UPD_log01.txt
| KDZ_FW_UPD_log02.txt
| KDZ_FW_UPD_log03.txt
| LGMobileDL.dll
| mfc42.dll
| msxml.msi
| Readme.txt
| Update to v20f.log
|
+---utkanos
| utkanos_P505-P506_CWM_beta_01.img
| utkanos_P505-P506_CWM_beta_02.img
| utkanos_P505-P506_CWM_beta_03.img
| utkanos_P505-P506_CWM_beta_04.img
|
\---V20F
| 3GQCT_LGP500_Android_SEP_13_2010.dll
| LGP505AT-01-V20f-310-410-DEC-22-2011+0-DZ.dz
| v20f_00.cab
| V20F_00.kdz
|
\---dz
amss.mbn
amsshd.mbn
appsboot.mbn
appsboothd.mbn
boot.img
oemsbl.mbn
oemsblhd.mbn
partition.mbn
qcsbl.mbn
qcsblhd_cfgdata.mbn
recovery.img
splash.img
system.mbn

BTW, each ROM is about 100-120 MB.