Definitely sounds like the Linbrook System is what you are looking for... But since you have very little space behind the speaker, I recommend you look at the 2 piece version (as it is front ported). The cost is the same, but it should be a better fit for your placement.
By the way, I also agree about giving Ty a call... He is a great person to work with, and he will give you honest advice (even if it costs him money).
Good luck,
---Dave
By the way, I also agree about giving Ty a call... He is a great person to work with, and he will give you honest advice (even if it costs him money).
Good luck,
---Dave