Steve you could always just hang the motor out front instead of lengthening the fuse.
My glider club prez just bought one of these, I gave him the link. I'm repowering my Skimmer and Vista and Jeff reccomended the firepower 10...I think it is a little over kill but will try them. Can always throtle down...I was going to go with a slowfly 450. They are about the same type of planes as this one. I try to build as little as I can and usually go with arfs. At my age and with my space I'd rather fly than build.