Well, I don't mean to open up a can of worms, BUT, I think the Saito 91 is better for it. You can swing the same prop, and et almost the same performance as the 100 without having to make so much mods in the mount and cowling. The 91 requires minimal mods and weights less. So it's pretty much the same thing without the rpice increase, mods and weight because the little you gain in power from the 100 u lose in weight. And remember that u dont want unnessesary wing loading on a plane like that.
Victor