I'm thinking around $300 -$500! Not really sure. It was all done by me. I only used one gallon of resin for this. $35
Thank you. It's not perfect but it's for me. It's my 2nd time doing something like this! And it HITS for what it is!!!!!
Nice work. I also went with fiberglass, but built mine off to the side. Now I want a ported box, so I'll sell my fiberglass box around Christmas.