Thx F10 I'll download that pdf as the other I loaded from here years ago the plans are virtually unreadable so we will see how this goes.
Getting things from the UKicon or the USAicon postage costs are through the roof and our $ is very weak against the GBP & USD I think our $ is only worth 55 pence so what ever the item costs pretty much double it plus then add the postage cost onto that to get the item here.
Then there is the time frame, one book I procured from the UK took 6 months to get here.

I was hoping that some of the guys that have had these chests and converted them would have been able to at least advise me if it is feasible.
We can never own a Bren here and even a deactivated one if we could own one in our state would cost in the region of $15,000/Aud.
If you think that's expensive a chap was selling over east a fully functioning and licensed MG42 for the cheap price of $40,000/Aud so yeah things here are exponentially more expensive than anywhere else in the planet.