need vented enclosure will pay

Hi, i would like to know if there is some one i can contact who is experienced in building slot vented enclosures and who has satisfied customers. I want a box for my 3 kicker cvr 12 and i want each to have an internal space volume of 2.25 cubic feet and that is not including the vent volume and displacement of the woofer i just want 2.25 feet for each sub total so obviously the box will be bigger than 6.75 cubic feet. The box should hold all three together and not 3 separate boxes. I want it tuned to 33 hz and messing around with the subwoofer volume calculator i want the width of the enclosure to be the at the very longest  40, height being 20 but adjustable if you like up or down, and depth being at very longest 21. Wood .75 thick. All of these got me a total of  8.03 cubic feet and i do not know if this is enough to make sure each sub has 2.25 cfeet and also having enough room for the slot vent volume and displacement of woofers. If not you can adjust only the height of the box upward. Thank you and you can private message me with the estimates as well as the shipping costs as i live in los angeles and shops around here either have never heard of the word tuned vented box or are just way too high charging me a lot. Please let me know if i am in the right forum or if i have done anything wrong i apologize. Thanks. 

http://www.klausaudio.com/ that website will make custom boxes to your exact spec; and the prices are not to bad either. this is who i plan on using to get a custom box made for my crown victoria.

First of all, I think you're on the wrong track... All three woofers in a common enclosure is a VERY bad idea. Build a common box, but dividers are a must, I promise you. You have PM.It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

No i did not mean a common chamber as i meant one box not three seperate boxes. I want them with dividers.

And you can't find a shop on ALL of LA to do this...?It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Believe me i tried the closest i got was al & eds and they wanted to charge me over 500 dollars and i think it was because they deal with nothing but lamborghinis and expensive cars that they feel the need to charge like that, maybe because they can get it.

    I would do it for 250.............but im in TN.

Check them out Fishercustoms.comwell?