Don't know if I had officially put up a FS thread, but I have custom made subwoofer enclosures for sale.
Have shipped out 2 already, have 2 more ready to be shipped out, and if the demand exceeds, will have more made within the week.
Each box takes about 2 days to make, so I believe the price is very reasonable considering labor time and materials alone are close to that.

I also have a pioneer 10'' shallow mount subwoofer, which is ideal for this set-up. I have the same in my x, and it sounds amazing.

Box: $100,
With sub: $150

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