Ilori you can do an internet search for coin laundry's in Australia and there are a couple of good ones that sell the laundry equipment, some even have lease options and rent options to defray your cost. I guess it all depends on location mainly and researching your market.

As for the internet business, I have tried one and marketing and getting your name out there is difficult. Its not as simple as just building a site and waiting for customers. Ebay fees are ridiculously high and getting higher daily. It is a low cost alternative to start off a good business idea and test the market however your profits are quickly eroded by Ebay fees, seller fees, paypal fees, listing fees... the list is endless.