Do you have the other details on thickness, dimensions and method of assembly? Your thread can be the resource for others .
My friend helped build the Black Limba combo cabinet for my MarkIIA. We just measured the plywood/tolex original and winged it. Love it, but the following items are not to original specs as far as I can tell.
> planed the wood to 3/4” like fine furniture. Believe factory is thinner
> Used Cherry plywood for the speaker baffle, also thicker than factory
> Dadoed the baffle to the cabinet, factory appears cleated
> we used half-blind dovetails, not evenly spaced. Just because it looked nice to us.
> I could not find one board that would yield the top, sides and bottom. I got the top and sides from one board. The bottom and back panel were from another board, looks like from the same log.
Post photos of your finished cab!