Your Weston engine sounds perfect for a "full fuselage" Peacemaker Phil. Have a look on Outerzone for the plan. The Peacemaker was my last C/L model, I sold it only a few years ago. Looking back over the years to my first C/L model, a Keil Kraft Phantom with a Mills 1.3 diesel, through all sorts of designs like the Veron Bee Bug, Keil Kraft Skystreak 40, Frog Vandiver, and a lot of others I can't remember, the Peacemaker was the nicest model I ever flew.
The following user(s) said Thank You: Phillip Ford