Hey Angela! Thanks so much for reading!
The place I get leather from in Perth is through our family business. So I’m not too familiar with places to buy it in Australia. But it would be worth researching a few places and calling them up too see if they’d take an order. Just keep in mind a lot of places only do wholesale trade.
Ah no, I didn’t use a company to make the bags. I did them myself. Local manufactures would be very hard to find in Australia, and if you did, they’d be very expensive! If you need a space to use the right equipment you could look into shared maker spaces like this one http://makerspace.org.au/