@LILJAMER
Use fastboot or adb to flash phillz recovery image to your laf.
This will give you more available options in case you bootloop.
You can restore your laf, restore a recovery, reenable fastboot, flash zips, all from phillz recovery, im sure there are even more options i cant think of right now.
Busybox is not necessary for the tool to work being the tool is for PC.
With the lg flash tool if you set it to " emergency " I believe USB debugging is not a problem but I'm not certain.. When I've used it, I've always been in a bootloop and couldn't access USB debugging setting