I built one years ago.  didn't have enough tip weight and the wind caught it on take off and it did a wingover by itself.  Crash!

A couple years ago one of our clubmembers built one.  It flew fine with an Enya 35.  Al builds kinda heavy, so it wouldn't stunt real well, but it did nice round eights, loops etc.

The wing is pretty small, somewhere around 375 squares I believe.  If you can build it light, maybe keep it under 35 ounces, it should stunt fairly well.  I'd suggest molding the fuse out of 3/32 in. sheet, instead of the crutch/former/planking method shown on the plans.  The wing is fine as is.