http://shop.polybelt.com/1635-5M-09-Black-Rubber-Timing-Belt-327-Tooth-B1635-5M-09BNG.htm
I think this is the right one.
Yes, that is the right one. If you order more than one at a time you get a better deal--the shipping on two or three belts is not much more than on just one--but check to make sure of that. There are other places, I believe, that sell the belt for a little less than Royal. But all of the outfits that sell it use UPS for shipper.