I Shok,

I've converted my old Kfir to Bee power.
The foam wing doesn't need to bee reinforced.
I have only reinforced the tail fin area with some carbon fiber and installed new larger tanks.
The bee is just right for this airframe, and is very light, so if you use a small turbine don't over enginer the installation to keep things light.
I don't think that the ruled inlet will increase the performance, it is not critical on a turbine set up, but it would be interesting to see if you have more space with them for the fuel tanks.
I'll post some pics tomorrow

Florent