aucklander:
Nobody use copper pipe and brazing, or bending copper, same as the original installation of the house was done 40 years ago
If plumbers won't do copper, it doesn't really leave much choice other than to DIY. I have a pipe bender but brazing using a torch scares the crap out of me. Crox tools work well, and I only purchased one a few months ago, after borrowing my neighbour's one for years.
I don't do sanitary plumbing, I've only done tank installation and irrigation systems, but I also don't see any reason why I shouldn't be able to. I've not been too impressed with the plumbers I've used recently.