I think it will work, but probably will not be very efficient. I have the following suggestions:
-Take a sander and add a proper foil the wings. It is important to have a thin trailing edge. The back wing should have a little negative lift (opposite of the front). The negative lift in the back helps you to reduce the angle of attack in the front by lifting the nose.
-If the wings have very much flex after sanding, consider laminating with fiberglass. Check that the resin will bond to the Lexan. You will definitely need to sand the entire surface.
-Thin out the trailing edge of the mast.
-Add a couple more layers of glass to the mast to reduce the flex.
-Try to get some lower profile bolts for the fuselage.
-If you don't already know how to ride a foil, it will be VERY difficult to troubleshoot mast placement, angle of attack, and overall lift. See if you can get an experienced foil rider to help you tune it.
Good luck and report back.
I know the proper foil shape would be great, but lexan is quite hard to work with. If you send it to fast it starts to melt. I routed the edge so the edge is thin, but i was limited with the router blade that I had at home, I am sure i could find something better in a tool store. To put a foil shape in the whole wing would not be very easy to do. If I will do that in the futute, I will rather do that in wood and glass it.
I also inversed the foil (if you can call the profile on my plank wing a foil...) on the back wing, so the front wing has a thin edge at the bottom and the back wing at the top. I am not sure if that will have any effect though...
I am planink to stiffen the mast in the future if I will see that this thing is worth upgrading, or maybe I will be forced to do something more sofisticated in the future. It would be wise if I would do the "weight and measure" test like suggested in this forum, to see where am I with the stiffnes compared to others. Mine sure does not wobble like the one on the Hawaiis video, so maybe it is not that bad.
Regarding the bolts - i was planning to route the bolts in and make everithing as flat as possible in the future - again if I will see this concept has some potencial. For now I just boltet everithing togather to see if it will work.
If I could get someone with experience to try out my creation would be great, but I do not beleive I will have the luck to find one arround here. I only saw two folers in the last cuple of years. And most probably I would be too ashamed to show this "beauty" to someone used to fly on high tech carbon wing...
Thank you all for your thoughts, and keep them comming!