Just visited the mini max web site.
If the engine in that thing is a Hirth F-33 it may be just under 254 lbs and would fit in the ultralight category. However, if that is a Rotax engine, it isn't going to qualify as an ultra light as the empty weight for the mini max models with the Rotax are over the weight limit.
At any rate, not knowing what it really is, I suspect this whole scenario will provide some entertaining reading if he ever gets it fixed.
*edit* Never mind, it is a Rotax engine.
I'll stick with my previous posts.
RTR