I got my truck at "truck town" off of auto center way in Bremerton (hwy 3 north, just past gorst), good selection of clean used late model trucks at the best "dealer" prices I have found. They have all makes and models, and years vary from early ninties up to 2005.

My truck was bought to be a tow mule, hence the 460 and 4.10 gears. the 300 I6 would be a good choice for lighter duty and general cruising around.
My boss I work construction for has 190k on his 96 f150 with the 5.8L, it has driven overloaded since day one and is still holding up fairly well on almost all the original parts.

I am not sure of the tax laws, can you depreciate or write off a used truck for business purchases or does it have to be new?