Make a box of about 40l capacity (my boxes vary from about 20l to 50l ) long enough to get the frames in and fit it with a lid. I use correx to make the lids as it's cheap (temporary road signs or estate agents signs!)
I drill a 1" diameter hole in one side with a bit of varroa mesh held by a screw so it can be slid shut when you get the swarm.
Add the comb and a dab of lemon grass oil and bobs your uncle!
I would just take the internal dimensions from an existing brood box, super etc and make the best copies you can. If it is a success you will have to expand at some point and that will mean begging, buying or borrowing kit urgently - you may not have time to keep building supers whenever there is a honey flow. .
I have never used plywood hive components but I have seen some at shows etc - they tend to be on the heavy side. I would limit use to the floor and roof and use more conventional timber brood box and supers, which can get extremely heavy in a good year.