Ok, we were talking about a box to the 43123 area code - $70 shipped to 43123.
"i can make one tuned to 31 that has dimensions of 21.5x18x15 w/ a slot port that is 1x10x4.5, w/ black or grey carpet. but no terminal (cant find one)"
I sat down and did golden rectangle computations for volume, well, doesn't quite fit, but I ended up with this box which should be about a 35 hz tune 2.18or slightly less cft box.
See gallary pic (sorry about the crappy slot depiction, it's full height, 1.5" width, with a 6" inner leg).
I can buy and install the terminal on my own.
If $70 for black (pref) or dark grey carpet, I think I'd like to buy one of these from you if I can see some pics of your work.