I have a bunch of old singers and love every one of them. When I find one it usually only needs to be cleaned, oiled and lubed. I have had to replace the odd part, they are still available at online sites. The manual shows how to maintain the machine.
The old Singers have the nicest stitch for piecing. I piece on a featherweight, bind on a 301A. I have 15-91,185, 66, 99,501,503, 306, and a treadle 66,a handcrank 66 etc. They all are a pleasure to use. I didn't pay much for any of them (compared to a cheap plastic machine).
I would buy that machine. (I keep telling my husband I don't need any more machines) :roll: