I'm currently finishing my instruments with nitro lacquer which I'm getting locally (Christchurch) from PPG. I do it in the back yard on dry days, but my neighbours are getting a bit over it.

I'd like to move to spraying something a bit less toxic - ideally maybe water-based. But in my searching around the internet for answers I'm having trouble translating my understanding of what products to use from the ones available in the US to the much smaller pickings available here in NZ.
I French polished for my first five instruments, but having seen a couple of them again recently after a few years hard use and abuse (and refinishing one) I don't want to go back to shellac for anything other than a sealer. I've used tru oil before, which was ok, but I'm keen to keep spraying as my results really have just been so much better since I started that.
Any thoughts appreciated!!!
Cheers,
Davy