Here ya go Irish....this one's only $400.00. Looks like a real nice setup, everything you need is included, and it would be a neat job when finished. Is a bit pricey.....but what isn't these days.
http://www.ultracoolfl.com/shop/oil-coolers/the-reefer/
Think an oil cooler is probably the way to go. Have read elsewhere that something like 70% of the cooling is done by the oil......a lot less of the cooling is accomplished by air passing through the cylinder fins.