I vaguely remember seeing an advertisement for a towing company on ebay when I bought my Excella. You might check their website because they had a number of services where you could have someone check out a vehicle you wanted to bid on for any maintenance problems. I think they mentioned a towing/shipping company as one of their services.
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system