I guess I didn't catch the 'braced hinge'; or I'm not understanding what you mean. But it looks feasible from here. Wireless video transmission, of course, but it should work. (1024x600 @ 16 bpp: 9.6 Mbps bandwidth.) The screen has no electrical connections, except probably contacts to charge the battery when it's closed. It slides with two pins in each track; that keeps it straight until it gets to the point in the track where it can (if you want) switch to a hinge.

I'd say everything is feasible, given a year lead time and $10000 a unit, minimum order qty.: 1000 pcs.