Kk, thanks to messi2050 for the work first off.
Second, does anyone have a backup of their original boot.img on a MetroPCS model?
Personally, I managed to get around some other issues with my phone not wanting to let the recovery flash stick, but in the process I zapped my boot partition.
I have access to adb, fastboot, root, twrp, and an unlocked bootloader... I just need the stock boot.img for my phone to get it running again. I know this was my error, and don't expect freebies here, so I'm willing to extract it from the KDZ, or if anyone knows a surefire way to install a KDZ to these phones - point me in the right direction.
All the google results, etc. were too far off the mark with regards to the dll's required, etc. (I don't know how or where to get a TOT for this model) and I've bricked units in the past fooling around with KDZ's to begin with, so I'd REALLY prefer just the simple boot.img flash in fastboot to take care of this if it's not too much trouble for anyone.
Thanks again, if I find out a way to get it back before someone gets back to me I'll upload it myself for anyone else that gets in the same pickle.