You might check online if one is already produced. The programming and cost of setting up the vacuum table is what costs. So one offs are way expensive. There is Diamond wood works in elsinore, he manufactures cabinets for a lot of companies including Polk, cerwin vega and fender. Wood Works : Diamond Wood Works - Lake Elsinore, CA
I rented space from them who did some cnc routing for me. Another trick if you intend to cover it is to use 1/4 foam and cut it with an exacto knife and glue it to wherever and cover it with vinyl. Looks the same and as cheap as it gets.