I've got a TT-54FS. Nice engine, very reliable. That TT91 4-stroke is a brick.

I ordered a new Saito 1.25 off of eBay last night. The fellow had it listed at the old price of $340. With the 25% cashback rebate from Microsoft, it'll come to $255. Tough to beat that. I don't have a use for the engine at the moment, but I don't doubt that something will pop up soon enough. It's never a bad idea to buy the stuff you want when it's cheap!