I am sure there is a trusted member than can evaluate the condition of that car that lives close. It is a slant six out of the barn with 83k on the clock. Running or not, if you can snag it for $2500 cash plus shipping for that car, you would still do wonders over waiting for something closer. Hell, those grilles can get $400. Bumpers maybe $100. Trunk finish panel a couple hundred. Rear window trim the same. Wheel moldings another $300 or $400 in good shape. Base hubcaps $100. Emblems $50.Date coded glass...interior items, seats, bezel, radio... If you are waiting for a black CA plate roller 69 notch to come around you will likely be waiting quite a while. If to are in no hurry I guess that is fine. Your 440 will take some investment and some risk as well to get completed correctly.
Even if that car in Nashville needed patching it is a far cry from what those correct manifolds, linkage and misc parts and the trunk VIN are going to tax you. You seem willing to take a gamble since the M code is crunched and you managed to pony the cash for that.