Ho hum, back to hunting for a spot for him then. I figure if I can't find a good one, I'll try running without a cooler - I've seen several street TT F-GTs that arn't tracked that don't use a cooler and don't have any problems. I'll rarely see over 4k rpm, and even then only for a few seconds, so I should probably be okay. Since the transaxle fluid needs to be changed every few thousand miles I'll probably see within 2 years (i.e., 1st change) if the fluid looks okay or if I need a cooler.
I do agree if you're flogging it it's a necessity, but research seems to be showing casual street driving can do fine without it. We'll see......