I'm bolting in an Hx35/H2e twins combo as we speak. I'm intending to use it as a very small set for towing twins. The main reason I went this route is because I had an almost brand new H2E sitting in the shop and thought, what the hell, why not try it. Ideally I'd like to build another set and probably get rid of this one. Anyways, I do have some pics and can get you specs if you're interested, I'll have better ones this weekend. Because of time I don't think I'll have it completed until sunday, but when I test it I'll let you know how it does if you want to try this set up.
What kind of fuel do you have?
Sean