Blitz and Trust do make an FMIC each, but I doubt you'd get one in for your $600 target, unfortunately.
I do believe that they're both a return-type cooler, which is perfect for your application (and, eventually, mine too), but you should CONFIRM this before you order, if this is the way you end up going...
Blitz part #: 12331
Trust GReddy part #: 12020467
I'm sure ARC make one as well, but I can't find the info on their site.