Dave, thanks for the additional info. If it involves "too much" work to replace the original cab, then it's not going to be something most people will undertake, and those who could would be much more likely to build their own replacement cab instead of buying one. It sounds as if removing the RH cab will also entail bracing the back end of the saddle tank somehow, as well, which would require metal fabrication on my part (adds considerably to the expense) or the owner's (most have proven unwilling to learn sheetmetal skills on demand, for some reason :-). Plus, I'd rather not start drilling holes in your (or any other borrowed) engine just to see how the cab would all have to go together. If someone else who owns the engine wants to do so and send me the specs and dimensions, I can easily draw it up. But I got a Ruby first, and can't spend the money on another engine (which fills a basically identical slot in my roster) right now. So, it'll have to wait, I guess. thanks, -vance-