I like my 2 stage trigger on my Howa rifle a lot but I also don't dislike my single stage triggers on my m70 rifles. This is going to be very personal so I won't recommend anything.
As far as the paint goes, you can spray paint your rifle. It's going to be cheap because spray paint is cheap. You can always repaint if wanted. You can repaint to touch up scratches or to switch up the color pattern/scheme.
I personally spray paint all my rifles. While they do scratch up a little bit, the paint has actually lasted a lot more than I anticipated. I'm surprised about that.
However, if you go cerakote/duracoat, the finish is less likely to scratch up. It is able to resist a lot more beating so you need to decide for yourself how you will weigh each option.