Van doesn't have AFM.Unless you get a 2500 with the L96 6.0L. No AFM, and a drivetrain/platform designed to survive 200k+ for 2500hd truck fleet use.
Only issue with GMT900 2500 series SUVs is finding one in good condition for a decent price. Last production year was 2013, and they're highly sought after, with very few people selling due to lack of equivalent replacements on the market. Blue book value almost doesn't apply...