Thanks! It's kind of hard to see in the pic, but it wasn't too bad fitting the air box under the dash. Vintage Air supplies some cheap brackets - I used some of them and made a few of my own. One bolts to the firewall, one to the cowl (you can see it in the pic), and two brackets bolt to the lower lip of the dash. The air box is really light, so it doesn't take much to make it solid. I can snap a few better pics if you need them.
I would highly recommend the "EZ Clip" AC hoses. You can build em at home and have reusable hose ends in case your plans change. Avoid the Vintage Air markup and get them from Murdock Industries.