I'm a little swamped at the moment so I can't donate as much time as I normally would, but if you email me I'll send you a couple photos. The options are multiple boards, or a unique layout along the back wall, including around the port hole opening. I think that back wall is the best option. The Sony kit is a challenge and should definitely have some type of difficulty disclaimer or instructional aid included. It is a lot to fit in the small box. Between the drivers and rear port tube, it is cramped.
Elon
Ezeecrossovers@gmail.com