Advocate I
As a 3/4 ton Chevy owner, I always felt like the GMs were way more limited than Ford or RAM. So I guess it's all perception. I had mine SAS'ed, but staying IFS there were very few high-high quality options for lifts (Cognito being the main one). As for long bed, if GFCs don't offer something, Four Wheel Campers have several options for 8' beds.
-TJ
-TJ