I'll build ya a sweet box for 800 lol make out of anything ya want mdf/fiberglass/birch/ hell concret don't matter the guy that ya got that price from better do a bad a$$ job for that much. o ya if you want sound deadner get it off ebay. Theres stuff called be quit good stuff (cheap and doesn't fall off. Its easy as pie to to put in just takes some time for a good job.