My model was powered by a pair of AMT Mercury HP's. Great turbine but a little heavy, which meant quite a lump of nose weight was required. Plus it was way overpowered.
If I did another ( Which I really want to do) I would go with two P-60's as I am sure this would power it perfectly and be allot lighter.
It was a light weight model for its size. Even with all my extra baggage, mine was only 43 lbs. I really did enjoy my model and it flew for several seasons here in the Uk and across Europe. It had a couple of idiosyncrasies but once you had masters those it was great fun to fly and presented so well in the air.
Here is a link to the photo of my old model, in its much talked about livery.
Regards Al