Hella all I’m new to the forum and new to domestic vehicles. I purchased a 2015 Tahoe LTZ with 75k miles on it a couple months ago and I’ve been lurking the site and slowly upgrading. I started off with 3M Crystaline 5% all around and 50% whole windshield. I had the front doors doubled and it blocks a lot of this FL heat. Next I purchased the Movie in Motion & Wireless phone charge upgrade from MVI. Both work great btw love it. I should be getting in the mail the 2/3-4.5 Lowering kit from Tony (NorCal SS). A friend of mine got into a multi car accident last week with his 2019 Tahoe LT. He is ok but his truck got rear frame damage so the insurance is totaling it with only 1800 miles on it! I wanted to swap out what I could from his truck to upgrade or freshen up but the most obvious wear items are different between LT / LTZ. First thought was all the leather seat but I have cooled seats up front and power folding 2/3rd rows.. his is all manual. I wanted to de-chrome my truck but things like his mirrors are not power folding or have blind spot monitor. So that brings me here to you guys.... What would be swap/plug & play between a 2015 LTZ 2WD & 2019 LT 4WD? Both Black/Black and the only damage to his truck is in the rear. I have about a week to swap out what I can as the insurance will be picking the truck up from him when everything is finalized.. What do you guys think? Engine swap?