"...would not cost and arm and a leg..." Any of 'em that are brand new will cost that. Saw a girlie(no more standard transmissions in Fords) BNIB, 4 door, 4X4, F-150, several years ago that had a price sticker on it of 70 grand Cdn, before taxes and the rest of the government cash grabs.
"..."Is diesel cheaper?"..." The fuel might be(it isn't always up here), but the vehicles are not. The diesel engine option can run 4 grand to 11 grand. And they cost more to maintain.
Spelling and grammar count!