I'd look for an old fleet truck. There are many auction houses that you can buy them from. I'd actually look for a 99.5 and up. Why Dually? They have a better turbo then the 96 OBS trucks and have an electric fuel pump over a mechanical one. The biggest problems with the Fords is they you a quick connect clip on the fuel system and they have a tendency to let air into the the fuel wearing out the injectors. Most truck need some injector work by about 150k from aerated fuel.

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Mad_Matt's Current Stable:
Oil Burners:
09 Jetta TDI The highway queen @ 105k
83 300D. Sold
Gassers:
16 A4 sport line
10 Passat
83 Recaro Trans AM WS6 Bone Stock Survivor
11 Harley Ultra