Anyone bought a 2003+ GM vehicle to put parts on their C10?

[encasedmetal]

I am just wondering if I bought a 2003 or newer GM truck, SUV etc for parts, what all I could use with no maximum fabrication. I know I could buy a 98-02 fbody and use the drivetrain, radiator and gas tank for sure, but I am mainly wondering about the following items for more of a one stop shopping experience if anyone has experience or thoughts
drivetrain- I know this will work
radiator
a/c and heat- as in under the dash
front seats-including seats, should work fine
gauges
wiring- not only engine/trans harness, but gauges, lighting etc?
master cylinder-any issues besides mating to 63' firewall?
rear brakes
rear end- would width be too much of an issue or could wheels be made to fit?
any other odds and ends