Legacy Alouette
Yes, not an easy task. I heard a couple of years ago that AH were looking at pulling the TC 2018-2020 but do not have an update on this. Parts and component/engine O/H will be increasingly difficult to achieve, though I believe HAL (India) build a military variant of the Lama for high altitude work. But it IS military, with all the constraints built in.
I concur, the Alouette is a wonderful machine, nothing to touch it, but the design is 60+ years old; a JetRanger would be a smart and cost effective substitute - VFR