Can I suggest that you offset the join of the mahogany body blank a bit so that the join line for both the cap and the main body aren't both right in the middle for increased structural integrity. I'd try and make it so that all-important neck join to bridge area on the mahogany is all on the same bit of wood, rather than have the glue join straight down the middle of the neck pocket. You'd also have the rear strap button screw going right through a glue line (unless you went non-symmetrical).

I've looked at a few of my guitars and none of them have a main body join that runs right through the middle. On the multi-piece bodies it's always one solid piece that runs right down the centre with one or more wing pieces.

So can I suggest maybe thinking about having a wide centre section with two thinner wings? Or at least getting some input from other scratchie builders here?