DIY logistics questions

Ok.... Have done oil change and plugs and brake pads will be this weekend
. Then the plan is to do carburettor balancing and Shimming.
Questions are:
1. Where can I buy the carb balancing device (ones with the mercury in it) ? How much do you reckon?
2. Where can I buy the replacement shims ? Do dealers like Brighton kawa sell them ?
Other equipments such as micrometers, torque wrench etc. seems common enough in repco/autobarn/supercheap auto I think...

Questions are:
1. Where can I buy the carb balancing device (ones with the mercury in it) ? How much do you reckon?
2. Where can I buy the replacement shims ? Do dealers like Brighton kawa sell them ?
Other equipments such as micrometers, torque wrench etc. seems common enough in repco/autobarn/supercheap auto I think...