Nice work and welcome.
Re: Expensive parts, we have the same problem. Shit here costs too much and most of us these days are importing all of our own bits. It's still nearly always cheaper to pay for international postage on items than it is to buy from any of the Australian stores.
Thats thanks to the exchange rate being favourable for us at the moment as well, I have no idea how your currency stacks up against the $US atm so it might be a diff story.