i was going to rig up some fans/filters etc... in the bottom of a big plastic storage crate but i have just won one of these all in one spray booths on ebay (£26

) picture attached.
i will attach the top parts to it, probably a modified clear plastic very large storage crate with doors, stick a strip of metal over the middle, use some magnetic clips to stick the shirt to it (on there way) and pre-treat away for £50 - £60 all in, thats the plan anyway............