First off, nice score of a low Kay Targa Top Brumby!!
Ditto to most of what dfoyl said, with the exception of the 40 hours required!!
Unless you are factoring in lots of beers in between dfoyl??
I reckon 10 hours tops inc stripping goodies from a donor car.
No other system will fit direct to your EA81 powered Brumby other than if it comes from an EA81 powered car.
So at wreckers look for any EA81 powered sedans wagons or coupes up till the end of 1984, or Brumbys till '92.
Just a couple of things missing from the above list are the fuse, fuse holder and relay that sits near to the main fuse box under the dash.
It hangs down from the main loom and all unplugs easily.
Also the 'idle up' solenoid and vac pipe plus the bracket that sits on the carbie.
I have lots of wiring pics and general pics if you need help. Just PM me your email addy and what you need pics of and I will send.
I sold a complete system 2 weeks ago for $450 (see my ad under 'wrecking MY' in Brisbane) I have another complete system that I have set aside for my own coupe project, but that is wayyyyy off getting started so if you cant find one local let me know and I may part with it. It does have a mismatched condenser (some systems are 'o' ringed and others are flare) so will need 2 small alloy pipes made, which is best done after it is all fitted to the car.
Cheers, John