Hi from downunder looking for 343 parts, hoping to get connected here

Hello, Born Built Beauties is a good place to start and there's DAFhobby who I've used quite a lot (I think the two don't get on, but that's another story between you and me, and maybe they have made-up by now , then there's www.classicswede.co.uk who is great as is another Dutch place called volvo340 onderdelen or something. If I think of anyone else I'll let you know but I really only know that late-340 scene.

Welcome to the forum...
Lots of parts supplier options as per Bogbasic's reply. I have used 340 Onderdelen a couple of times, usually when I have a few things to order as the shipping is expensive. Their prices can be a little eye watering so its best to look around at all options first.
If you are just looking for general servicing parts I have found lots of bargains on Ebay, NOS Volvo parts such as brake shoes, master cylinder etc.
For other general servicing parts I have used Autodoc / Buycarparts and had no issues. Prices have been good, shipping reasonable but rather slow delivery speed.
Cheers Dave