No definately dont attempt to clean them as no doubt their value will be lower once you finish.
Thats quite a list and probably best to post it in the Australian section...if you can post photo's or put them in your scanner then that will help you get a more accurate price since condition is a big part in valuation.
I just checked a reference book and can tell you that you don't have the crown jewels (it appears a 1930 penny would have been the jackpot for you) the prices in that book are outdated but to give you a ball park figure I estimate in the region of around £10 (English) for the earlier examples if they are immaculate (10% of that if they are worn) gradually decreasing through the years to very little for the more recent ones.
A good question to ask is what to do about verdigris (that green stuff) maybe ask that in the general coin forum...its not a problem I have encountered so I defer that question to someone with more experience.













