1994 GMC Sierra 2500 SLE 6.5 turbo diesel automatic 4x4

GMC 2500 turbo 6.5 diesel, automatic transmission. Engine, transmission, and radiator have been replaced recently but don't have any documentation. Power windows and locks. Runs and drives good but has lots of dings and scratches and some rust. A/c doesn't work but haven't looked into it might just need a recharge. Has rear reciever hitch and a goose neck hide away ball. Asking $3750. Feel free to call or text me with any questions. Thanks Dan