Don't waste your money on the felt rope. I made the mistake of buying a minimum order of it several years ago before I knew that I could still get this and a lot of other parts from Clausing. I cut off a piece, stuck it in the oiler, and oiled it. Two or three days later I noticed that the outer end still looked the same and pulled it back out. The bottom was still dry as a bone.
Just buy them from Clausing. By the time that you buy what will turn out to be a seven lifetime supply, buy a huge arch punch and find out that it doesn't work very well, and finally get two made, you'll have more invested than what Clausing charges plus shipping. If you can think of some more things to buy, that'll help. UPS's charge for the first pound is what's expensive.