grab a fwd thermostat housing and mount it remotely, just need to run the lines to and from it etc - is a bit more messy depending on how you do it.
(pic off toycrazy.net)
otherwise to run the genuine rwd setup you'll need the rwd waterpump housing, you can use either fwd or rwd waterpump (just needs to match waterpump pulley), the rwd outlet for the head which has the bypass pipe, and a rwd alternator mount (the fwd mount sits the alternator too high and blocks the waterline)