Chip:
I happen to have an old fence that is a spare. The bad news is it is so old it is a slightly longer version with no wood on it. However, it does fit the 45s that I have. You could put your own wood on it. You may want to consider it. It has the japanning not the plating on it. That David H. guy has spare parts also, that would fit your plane perfectly. It may be the price is right. He also has cutters you can buy one at a time to your needs. I think Stanley also sells cutters one at a time.

I looked that 100.5 stanley up in my book, and yes, it does seem to be the perfect plane for eliminating the internal high points on the boats. The price on ebay is terrible tho, for the little squirt. See you next week on the board- Scott