[G2 Android Development (D802)] Closed Force:
Here you go, no coffee needed.

1. I started from stock kk d80220f, rooted, with bumped blastagator recovery TWRP 2.8.2.0 and custom dorimanx kk kernel, 100% battery

2. Downloaded soomboon's https://docs.google.com/file/d/0BxADHj0aSysFZzhHWjdjc2tzaWc/edit from OP

3. While it's downloading use "titanium backup" to backup your apps and "super backup" to backup call log, contacts and sms

4. If the zip is still downloading, connect phone to PC and copy all your internal storage to PC. If it's still downloading try to make some room in your phone for zip and twrp backup.

5. When download complete, transfer it to root of internal storage.

6. Turn off device

7. Turn on recovery by holding power & vol -, and when lg logo comes up, release and hold vol+ & vol - all until it shows factory reset(fake) screen. Yes. Yes.

8. Now in recovery, do backup. I checked all partitions.

9. When its done, enable mtp. Connect to pc. Copy backup you just made.

10. Now Wipe (System,cache,dalvik,data)

11. Flash zip (1.3gb)

12. It will start aroma installer

13. When it finishes aroma will say that you succeed and that it will restart, but it will take you back to recovery where it says that it failed. Don't worry, it's probably OK.

14. Now you can reboot. It will stay on lg logo about 5minutes minimum. Then it will upgrade apps, etc...

15. If everything OK, now you are on rooted LP with custom rec. Remember that you now enter recovery with different key combo - power & vol-, and after logo, hold same combination.

16. Enter recovery and do backup once again you will maybe need it since you are now on different platform.

17. Now you can start debloating, this is good for your battery and it's mandatory for xposed to work on lg LP

18. To debloat, I used "titanium backup 7.0.0.3". For it to work properly you need to go to system settings>about phone>software info>tap build number million times to enable developer options, then go to developer options and enable usb debugging.

19. Now start uninstalling from titanium, all apps that I uninstall, I first back them up, just in case:

update center

software update

software update

app updates

lginstallservice

memo - i don't need it, there are 2 others

lgsearchwidgetprovider

weatherplatform - some of these must be gone for xposed

weather theme

weather

voice mate speech pack

voice mate engine

voice mate

smartshare.cloud

smart screen - i don't use it

lgwernickemanager

lgsmartcover - must be gone for xposed

lg backup

answer me - i don't use it

internet - i don't use it

20. now install and/or restore your apps

21. i recommend to enter recovery now and wipe dalvik and cache

22. download rovo89's xposed http://xdaforums.com/attachment.php?attachmentid=3200856&d=1425849071 http://xdaforums.com/attachment.php?attachmentid=3200857&d=1425849071

23. run selinuxmodechanger and switch to permissive

24. run XposedInstaller_3.0-alpha2.apk, don't open it yet, boot to recovery and install xposed-arm-20150308.zip, wipe dalvik and cache before and after install, won't hurt you

25. reboot and run app, check if framework is active

26. now you can download modules, i use miminguard for lp http://repo.xposed.info/module/tw.fatminmin.xposed.minminguard, gravitybox for lp http://dl-xda.xposed.info/modules/com.ceco.lollipop.gravitybox_v507_4751bd.apk, g3 tweakbox beta for lp http://xdaforums.com/attachment.php?attachmentid=3231965&d=1427475434

after every module you need to reboot, also after you change settings in modules, for most of them reboot is needed to see results

You do all on your own, I'm not responsible for anything, just sharing my experience, and probably forgot to mention something crucial ;)

Recommended reads http://xdaforums.com/showpost.php?p=59837620&postcount=1 http://xdaforums.com/showthread.php?t=3034811 http://xdaforums.com/xposed/modules/app-gravitybox-v5-0-0alpha-tweak-box-t3037566 http://xdaforums.com/showthread.php?t=2792242

Credits somboons, blastagator, rovo89, P_Toti, C3C076, fatminmin, and all others