Super Tigre 90? I would think you want more like a 60 size plane, around 60" wing span. The Harrier 90 would be nice. If you don't mind profile, the Accell's Katana 70 would be good. Also, if you are on a tight budget, build a Mojo 60, the best flying plane in this size.

I don't think Something Extra will accommodate the G90: it won't fit, will require too much tail weight to balance, and ground clearance will be an issue.