interesting! Something to think about for sure.
Another option i have found is using a radiator out of a westfield SEiGHT the 5 core job. These are designed for v8's so should be ok. Then use a 2wd escort cosworth intercooler...
http://www.ebay.co.uk/itm/Cosworth-I...96589233258759 on top that should all fit quite well and not cost a massive amount. If temps are high still can look at a 2nd rad in the boot with a charge cooler. But im also thinking about having two oil coolers as well. So over all the temps i think will be ok.