Im in the process or getting a subwoofer design for my car, but the thing is the box have to built inside the trunk which means i have to assemble myself. my question is if i send you the box design can you make the cuts and just ship me the enclosure in pieces?

You know what I did on my last enclosure. I took the cut sheet to Lowes and was very specific with the guy that i needed these cuts as dead on as possible. First guy told me he wasnt the best but found me another guy. for the price of a sheet of MDF they cut out my entire box, was damn close too, better than I could have done with my cheap cordless circular saw. I even tipped the guy $10 after he did it. (he said he wasnt supposed to take it but he did lol). Might want to give that a try, but like i said, be firm and tell them you need the cuts near perfect, if you find the right person then most of the work is done for you. and if they do a good job (more than likely take 20-30 mins) give the person a tip lol.