slingo, I am sure my 12 xlv is very close to the 13 mojo when the panel is removed. i did a reverse wedge in a sealed box for a 12" and did not lose very much foot room at all, the thread is lengthy but scroll throught it all..

Here is a link to the thread.
https://forum.moomba.com/showthread....ight=enclosure

I believe ian ashton did one on an green 13 LSV with that same fiberglass panel that come with the mojo.