Thanks for everyone's replies. After much debate, I decided on the OS95AX. I just purchased it from Tower a few minutes ago. They're running a great deal with $60 off $300 or more. I also got a prop and a bunch of other misc tools (new engine mount, dead center hole locator, taps, tap handle, etc) that's been on my wish list and the total only came out to $269.00!

I thought about a 91 Surpass, but didn't want to spend the $300 plus on the engine alone. Can't wait to get the 95AX installed on the Stik 60.