I put in a BeCool aluminum radiator plus electric fan. Puller fan, pusher would be better. Complete overkill, I love it! FAN turns on and off at idle, mostly off, I think 195F on, 175F off.
If I could cut and paste from the phone, I'd show you the parts list. You can find it on MyMy 230/250 build thread.
I had to call Be Cool to get the right size radiator.