Hello! I can design/build an enclosure for you if you're still in need of it!
Just email me at vitveet@hotmail.com so we can work out the details. Please lmk what vehicle it's going in, space restraints (if any), what kind of max dimensions as far as height, depth, and width you have to work with, how many cubes of airspace approx. you want and an approx. tuning freq. you'd like to achieve! I'll get back to you asap!
Also, lmk what you have for trade b/c I'm always up for trades!