I'd say buy it if you need it, love it, and can afford to fix it. And for practicality, you can probably find one that is well maintained on a farm sale for well under 2K. You could end up with more than that in this one just getting it road worthy, and still not be as nice as what you could buy for less.
I don't see it as a money maker either.
Now, that being said... if it was just down the road from me- I'd probably buy it
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'68 GMC shortbox 4x4 350/SM465/T221- bought it in '83
SOLD
'72 K20 500 Cad/TH400/NP205
SOLD
'92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver
'72 Monte Carlo... sweet low mile toy
'11 Dodge Challenger IE 392 6spd... midlife car