15's are a dime a dozen. I have restored machines (not to "mint" condition) and there is not that much to those old machines. Some of the parts might...
The only one I've used was MSQC. They charge 2 cents a square inch and supply the batting. I checked local longarm prices before using them and MSQC...
Jean I found the seller on eBay bought the four she offers then contacted her sent pics and she did the rest for me...I can send you her info if you...