If you don't require a pass through from the cargo area to the drivers area, I'd look for something like this:

Ford F 450 XL Standard Cab Pickup 2 Door | eBay

The 7.3 is rock solid, the pickup front end is easy to work on as well.

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250