[quote name='MoonBassAlpha' timestamp='1441369672' post='2858339']
That sounds like a long-drawn out process, not to mention tricky! Good luck with it though. What's the model of that Gibson (or is it Epiphone?) that is a smaller bodied version of the 335? That would be pretty much the same then. I think it's a 339
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It would involve planing the back down by the finished thickness of the replacement cap, routing the mahogany core out in both wings, routing out the f hole, then drilling the underside of the cap out to consistent thickness and planing/sanding smooth. Then putting a mahogany face on the back, chamfering the edges and refinishing.