Probably don't need 2500
Half ton brakes and suspension will be OK
Avoid 5.3 and 454
6.0 or 8.1 are OK but the 8.0 will guzzle
Go with truck to get Allison transmission with 8.1
Most seem to prefer truck over the 'Burban for hauling stuff
Weight distributing hitch is a good idea
That about sum it up?