get searching your local scrapyards with a tape measure. There's loads of small front mount ics in there that are suitable for fitting to a mk3 polo, vw sharan tdi, bmw, frontera tdi....etc....
Or there are loads of universal coolers on ebay. Of course, any of these will require you to make mountings and get necessary boost pipes to suit. THe other option is to take it to somewhere like jabbasport, forge motorsport, allisport etc...etc... and just pay them to do it all for you.
I've got a 2wd sierra cosworth one with modified end tanks on mine. But to be hoenst you're better off getting something that'll more of less fit right on in a scrappy.