What are AB's. How big of box?
I have a BBK x-pipe box, longtube box, and my KB blower box. They have been in my shop so they are not the cleanest, but if you need it I live by 75-80. If you have some dimensions I can make sure one of those would work. Also Nexcar, the rental place inside Fitzmall on 85 across from tate sells big boxes too. I'll PM you my number if you want it.
We have boxes that go around engines and transmissions out here in Westminster. We like em' big! Let me know.