How did you form the box? Did you use fiberglass, or MDF? The reason I was looking for one second hand was the delay in getting one. I can imagine it could take months.
I have seen the 10" boxes on EBay, but not the 8's. I really want something that will look as factory as possible and I hate the way the 10" box sticks out from under the seat. Pitty too, I own a JL Audio 10W0 that would hit like a ton of bricks in that little cab.