The inlets - taken to absurdity - act as ducted fans inlets.
Again to the absurd point - if enough air was pulled -there would be a large low pressure region which would lift the model upward.
Also what goes in must come out -so IF you had enough air being gathered from above AND enough thrust from the jet exhaust and the fans - - nothing else would matter ---
Certianly a interesting project you have -- I would do it with electric motors -being lazy as I am .
Drag racing turbos - sounds like Honda stuff.

Dick.I race a twin turbo corvette, Small block chevy on gas.Puts out 2100 hp on dyno goes over 205 in Quarter. Got tired of sponsors owning me so a only race about four times a year now. I also dont push the edge like we had to for sponsors. Now its fun again and actually way cheaper since that last few percent is what kills parts and drivers. Back to the plane. The turbine is like a turboprop,most exhaust gas is used up by the free turbine so it cuts the exhaust substantially. Cant be used for thrust. The free turbine transmits its power to the rotor blades,in exess of 40 lbs of thrust has been measured. If I did try to put a slot at the center of the wing (fuselage section) where? At the thickest part of the wing. Since this engine develops about 7 hp it does use a lot off air. It wont suck it up but it may add a little lift. I could check the compressor map and find what it flows in lb per minute. If anyone thinks this has any prayer of being practical,or not, chime in.