I recently bought three guns at a garage sale for a good price ($15 for three guns and two pressure pots). I am looking to keep one - maybe two, but I do not know which is the best. I probably will not be doing any final paint work - but maybe door jams and definately some primer.

The three guns are:
Binks Model # 18 (Siphon feed)
Binks Model 2001 (Siphon feed)
and
Sharpe #75 (Siphon feed)

Any opinions would be appreciated.