1973 Cadillac Sedan DeVille Hardtop 57,000 miles

1973 Cadillac Sedan DeVille HardTop, with 57,000 Miles, 472-V8, Power Locks, Power Seat, Power Windows, am/fm radio, air conditioning, Cruise Control, the interior is in perfect condition, the exterior is decent, the padded top is nice, the chrome is decent, the paint is fair, the body is straight but has a few areas of rust, the frame and undercarriage is fine, the trunk area is complete with spare wheel, & the original jack, the hood compartment is original and intact, the car was running perfectly last week but I believe it now needs a fuel pump, it will start right up and run with a bit of gas in the carb but won't continue to run after that, I'm thinking fuel pump or fuel filter.
cash upon pickup, or if you are having it shipped, vehicle is to be paid for in full by bank check etc before its picked up by your transport company..