I would find a diesel/V10 Econoline 350 that was cutaway form factory and had a large drybox on the back installed. That should hold a piano easy. The hydro lift bro described would be good, if you use a pickup a side mounted Autocrane is nice. But still, the van idea seems like the best to me. A little harder to do repairs on, but shorter, easier to maneuver. Plus if you find a van with the modular rack system, you can remove all but a rack or two for plenty of space to hold your piano tuning tools (if you do those services), and then later if you need a change of business, you have a full rack system for the work. To me (IMHO) the drybox or factory E250/E350 would be best. Lots of used ones around here, but they don't lose their value too easy, cause they are bought up alot.