I may not be around in March, as I do 6 weeks work in the US and 6 weeks time-off at home, but you can still meet with the club when they have their friday night meet-ups in the Sunway/PJ area.. the club is big, but during the meetings we only get a handful of members, as most of them are busy working men..
Other times, we meet up with other groups, & have big convoys with Supras & EVOs as well..
There is a link to the club forum on my blog..
As for parts, 2nd hand parts go for about half the price of brand new, but subject to availability.
I do not know prices all that well, but I can get in touch with my mechanic mate back home for some quotes.. he is the man in the know and with all the contacts..
When I got my ride, it already came with the ARC radiator, but it sure is good, when the other cars have to stop to 'cool-off', my temp is still ok.. so must be doing something right..