So I have an 03’ lb7 that is extremely best cosmetically speaking. It has 180k miles and the frame is solid. I’ve been waiting on my title for months, and my Escalade needs headgaskets. I have access to lifts, and every tool I could ever need.. The plan is to pull off the bed and cab, cut the frame and move up the shackles so we can drop the body off the Escalade on the 3/4ton frame. My question is what does this swap really entail? How would I wire everything up to retain my electronics..? I’ve never swapped anything into something this new, only old muscle cars. All opinions help, thank you!!