It doesn't cost much to build a box, especially when you buy the materials in bulk. However, unlike my side job as a **********, I don't just build boxes for the fun of it....I got a water bill to pay just the same as you //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
I posted plans for a magnum 15" box a while back. If you'd like to dig them up and use them, I encourage it. If you're unsure of yourself or don't want to risk cutting a finger off, I'd be happy to build it for you, and you can even pay in installments if you'd like.