opinions on a truck wanted

[beautimus]

well, i started out to rework a 71 chevy short fleet truck, its all over my basement in a gazillion pieces. i got a pile of bucks in this thing.
now i have come across a 72 3/4 ton with 88000 original miles,
factory white paint, that still looks decent,(even in the bed) it was a camper truck, but not a custom camper. it is 402/400 auto ac, ps, pb, am radio, toolbox bed , posi and belive it or not the cab corners and rockers have no holes!!!! the current owner bought it from the original owner about a year ago, and now wants to sell it because it only gets 10 mpg, and his new job is 35 miles away. heres my delimma , do i keep on keeping on with the 71,
or do i spend the $3000 to get the 72 , what do you guys think?