RE: ultra stick lite engine choice
I flew my Ultra Lite Stik 120 with a souped up Homelite 30cc and it flew great. Pretty much unlimited vertical. My Homelite 30cc is all hopped up and turns an APC 16 x 8 at 9400 and so is a little more powerful than a Zenoah 26cc.
It was a great combo until I "dumb thumbed" it into the beach on a high speed inverted pass one day....
AV8TOR