I certainly could, I was actually gonna say if anyone wants a box built I was considering doing them up.
The box doesn't move at all, even under the loudest of sounds, or heaviest of driving, because it'* built to fit exactly in the that little area in the back of the trunk it holds itself in without any mounting at all.
Now of course if you used different woofers the dimensions would have to change to accomodate the required volume for the praticular woofer, but the depth could be the only dimension that'* altered, so it would still fit as tightly.
1999 Mustang GT - 5 Speed - Modded to hell
2004 Infiniti G35 - Loaded - 6 Speed
1998 SSEi - Black & Chrome - Dual 10" Infinity
1997 SSEi - White & Chrome - Rear ended, and written off.
1995 SE - Green & Gold - Given away, :(