WannaChopper ....
PHS are a good organisation as are the guys at "The Helicopter Group" at Moorabbin/Melbourne.
I think you may be trying to bite off too much trying to do your Instrument Rating so soon. By all means do some Instrument training but I think you will find the flight requirements and techniques required VERY demanding (also expensive) .... and for somebody still new(ish) to keeping a Heli right way up in VMC let alone in IMC. Having said that if you are a high time fixed wing pilot that may not be too much to ask.
Good Luck
