Hey lgodin,
I noticed that you were planning on using almost the exact same set-up as I was for your Ulty (except for the 6 volts...I was going to go with 4.8). I also have a Saito 150 sitting around waiting for a home, and was wondering how the vertical would be with it. My other choice for this engine would be a Goldberg Sukhoi (but I'd have to build that airplane, and that could take years...for me, anyway).
I'd appreciate it if you can keep me informed on how your Ulty comes out, and the flight performance with the Saito 150. Also, if you find any good threads on building it, I'd like to know about them, too (if you don't mind).
Thank You,
Mark
P.S. - Were you going to go with the pull/pull for all the tail surfaces, or just the rudder?