10” MTM design help

My baltic birch order isn’t going to be in until 11/26…….wife comes home 11/29! 😳

$130 per sheet for 5’x5’ 3/4” ……..gonna have to look at alternatives.
Maybe some marine grade AB fir would do……..its a little softer wood but no voids, good glue, can get that in stock locally for $100 a sheet?
 
$130 per sheet for 5’x5’ 3/4”
Maybe some marine grade AB fir would do……..its a little softer wood but no voids, good glue, can get that in stock locally for $100 a sheet?
Yikes! That's > 2x the last price I got right before Covid!!

Right, the goal is no-void, with marine grade my only easy access/'reasonable' pricing option during my active build years.
 
They veneered them furniture grade one side and had to admit that their joinery was top notch, though still visible if one was paying attention, but the typical woodworking DIYers doing speakers, end tables, etc., in my locale in the late '60s, early '70s were HS, college age, but with no 'shop' courses; these didn't come along until my daughter's HS time.