I don't think it would be unreasonable to set up a method of accepting donations to help offset the cost of your investment, poita. Considering the potential return for the community, I'd certainly consider helping out a little if possible.
Are you planning to do the 10K upgrade on that thing? That's additional cost to consider, of course, so I imagine it would be down the road a bit...but donations could help there as well.
I may wind up moving to Australia in the not-too-distant future (Melbourne, actually - my wife's already there for school). If I ever find myself in your area, it would be neat to see that scanner in action.
--SKot