For clarity, a box of 10 pairs (20 plates) is ~35 EUR, so a little more than 50 AUD. Shipping decreases significantly the more you buy, but one to two boxes is 20 EUR shipping, 3-4 25 EUR, etc. Plus a wire transfer fee, which varies from $22 (Cheapest I've found) to $50. One person buying one box is out about $100 AUD, but two people buying one box each is $75, 4 buying 1 is $66, etc.
I have raised metal toe taps on all my dress shoes and I have yet to notice them, which suggests to me that the difference between flush and raised would be only marginal and not worth such effort.