Hi Rod.
Welcome
I'm Adelaide based. (Mile End)
Have a couple of mates in the UK that race vintage karts, can be an expensive hobby.
Not sure on a meet location yet as I'm not aware of any others locally. Been trying to drum up some local interest for some years but I think you're the first to post here. (I don't do FB any more)
I always had my eye on Victoria Park Street circuit for a GP style event as the track can be hired from the council. Unfortunately it was host to the Covid testing station for a few years but that's now gone. I think it is now open again as I saw some pedal-prix cars there the other day. Maybe with a bit of interest and a few participants a GP race could be a possibility in the future, but it would need some numbers to be viable.
As far as a monthly meet is concerned, I never organised anything as there was only me and I lost a bit of interest. My build has not progressed for a while as life has kinda got in the way. I guess I'm about half way through...
https://cyclekarts.com.au/pages/brooklands-bentley