RE: Will this work?
It's got serious potential. And I know I've had some ideas about building one of these.
Best bet is to make up a test glider about 16 to 18 inch span using 3/32 sheet for the surfaces and a carved white or blue styrofoam fuselage. The real doubt concerns the size of the fins. It looks like they may need to be larger for the model to fly nose first. A test glider will tell you that right away and also let you play with adding area easily until it does fly stabily. There's no dihedral so don't worry about it being stable in roll but you want to make sure it tracks into a spiral dive or turns without the nose hunting all over or the model simply wanting to swap ends.
But first you'll want to work up a 3 view drawing.