This may seem obvious to more experienced builders, but I want to get it right. I'm building a large scale A-10 from plans, i.e. no instructions.

The fuselage sides are 1/4" balsa with a 1/4" ply doubler around the wing cut-out. Unless I'm mistaken, I'll have to splice the balsa sides somewhere since the lengths are limited to 36". The attached sketch shows three locations where I could put the splice, but each has pros and cons. Since the side panels are almost 70" long, the overlap area where the splice would go is actually fairly small, so the issue may be moot. Then again, maybe I should put a solid sheet of 1/4 x 36 centered on the wing cut-out with splices fore and aft.
Any advice will be most appreciated.
Thanks,
Paul