The HB is going to be stone reliable...I believe the Telemaster is a German design might as well put a German engine in it.

I've had both the Kit and ARF versions and the kit flys better in my opinion. It's lighter. I loaded the ARF version up with alot of extras and I wish I hadn't. They're a blast when built very light. Any of the engines you have will work. Pick up a Edson mount from Mecoa and you can run any engine you want. (Quick Change)

http://www.mecoa.com/acc/mounts/edson/edson.htm

They're great airplanes.