I was looking at the Geo Tracker core on
www.heatercore4u.com/2-646.htm and was wondering if anyone has used this heatercore. With some changes it could fit in tight places with a single 120mm fan.
As a side note I picked up a $20.00 sheetmetal brake at the local B&M Harbour Freight which works good for 19" long pieces of 18 gauge metal. I've been using it for a car restoration, but it would work for thinner gauges for radiator shrouds.