welcome to boat carpentry....you may be able to get some from a local yard or piggyback on his shipping if you can coordinate orders. Very few wholesalers will sell to small users.
There are very few "small" shops left for custom woods anymore due to the Fed Regs about "importing" fancy woods. Re: Gibson Guitar and the president/DOJ.
Most, if not all, current (last 10-15 years thru now) boat cabinetry is teak veneer or similar veneer stained to "look" like teak. Teak solids and true marine grade teak ply are very expensive. Very. If you can find it.
Most marine ply can be teak one side, or both sides, or teak holly veneer. The interior ply is almost always some other marine exotic (cheaper, sustainable, easier to work, etc)