Hi Jason,
The FMIC will need body modification as the return pipe will have to go through a hole in the side that you need to cut. You MAY need to trim the front bar. I had it installed by Natrad, so not sure of all the details that were involved in getting it to fit completely.
The exhaust will fit the stock turbo, yes. You will need an exhaust bung though as I had my wideband tapped into the dump as well as the stock o2 sensor (easily picked up from an exhaust shop). As said before though, the cat converter is an unknown quantity at this stage, it may be intact, it may be hollowed out thanks to a Bee-R Rev Limiter
After $450 for the lot (pretty much a free FMIC since the exhaust is $900+ new)
As for being home tomorrow, it will be the rarest time I'm actually not! PM us your mobile and i'll message you with details etc if you are interested still.
Cheers
Sam