Thread: Seeking advice / suggestions for Pruning Saw

I have been asked to help cleaning up some overgrown tracks in native bush / regen. This is on private property.
A macete is being made available for my use. I have not really done this type of thing before and would think a good quality pruning saw for the likes of Manuka stems, and other similar woody growth, would be invaluable. I'm not interested in mechanical tools as I have time to go quietly at my own pace and it's not a massive job - maye two or three days at most.
From use and experience can anyone recommend a high quality, lightweight, possibly folding pruning saw that would be suitable ? Preferably one that stays permanently sharp without need of changing or sharpening saw blades. I don't want to spend a fortune but will pay a reasonable cost for quality.
Thankyou.