I gave up the internet hunt and went the old fashioned way: went to a store with a guy who knows this stuff and bought what he said to buy. This is extra funny since I make my living off internet sales, but there's definitely something to be said for brick and mortar. The store is called Hobby Marketplace but they have an online store:
Only about an hour up the road from me, and as I was leaving the guy said, "Call me if you have any trouble!" And it sounded like he meant it!
He tested my old servos and found them working! I was stunned. I bought new ones anyway, just to have backup. And because I have thoughts of building another boat. OK, maybe that was the main reason. Someone needs to make an RC version of Sailrocket. Why not me?
For those wondering what a Sailrocket is, it holds the world speed record over the short course, after recently smashing records set by the kiteboard guys.
So now I've got new stuff on my table and just need to install it in my boat. This I think I can handle! And if I can't, I have someone new to bother with my problems other than you folks!