RE: senior telemaster engine?????
I've got the ARF that I recovered and converted to Trike Gear and am using an old OS Max H-80. IMHO a plain bearing 60 or 65 will work real well. A good used engine works real well in this model. They're cheap enough that you can just leave it in the model, forever........ and never have to worry about bearing maintenance or anything else. The Telemasters are like tools they tend to sit around untill you need them and when you do they always work. I always bring mine out when I take a friend to the field that has never flown a model before.
They're neat airplanes.