Good for you! I paid $90 or so for a plexiglass insert for my Babylock Quest Plus for my Horn cabinet. Stupid, b/c it comes with an extension table just like the one you made, with markings, to boot, and I could have just used that and adjusted the machine platform to the right height. Duh! I won't make that mistake again. You could do this for extra $$, charging less than the top prices, but enough for a profit for you.