mondo cool... I have a Singer Redeye 66 treadle...
There are several yahoo groups that cater to us old Singer freaks...
Singers
vintagesingers
vintage_treadlesewingmachines
I have the 66 treadle, 2 301s (which I use for quilting) a Featherweight, a 401. a 237, a 328k (which is residing out in the shed because yuk), a 185, plus an XL1000 :roll: (my embroidery machine)
there are lots of 'old singer' repairmen on those lists who can give you great advice, put you in touch with people with bits and pieces you might need, etc