Janie,
You can get most of what you need for a 66 ( a lot of other machines too ) at Sew-Classics.com.
http://www.shop.sew-classic.com/
Their spool pins:
http://www.shop.sew-classic.com/Spoo...-Felts_c15.htm are not expensive at all. Currently a whoppin 49¢ per each.
The spool pins on the 66 machines are a tap in. If the pin is not broken off in the hole, it's just missing, all you do is slip the tapered end into the hole and smack it with a hammer. Of if your kinda timid like I was the first time, "tap" it. When I tapped it in, it fell out the first time I used the machine. After that I smacked it and it stayed put. If the pin is broken off in the hole ....... ewwww I'm not sure what to do then as I've never had that problem ... yet.
Good luck on that machine. As for the oil I'd suggest Tri-Flow as it seems to free up the sticky parts a bit quicker than the regular oil. Sew-Classic has that too.
Joe