Quote: I'm think I can just find a nut which has the same size thread as my tripod, and glue/bond it to the camera, but if anyone knows a more tidy/sturdy way, don't be a stranger!
Yeah, 1/4 or 3/8 threaded nuts shouldn't be too hard to find. Recessed into thick ply and stuck in place using Araldite (preferably the slow-setting stuff) should be solid enough. Get the nut clean - thoroughly degreased - then deliberately score the outer faces with a file or hacksaw to give the glue something to grip on.
Something else you might try, see if you can get a "scrap" camera (50s compact) off eBay for 99p, cut the bottom plate off and use that, Araldited to your base plate.