A109
Flew 109 for 2000 hours (on the nose). For the mountain work and your range/load combination I'd lease an S-model on power-by-the-hour (negotiate the lowest you can get, and sometimes it can be much lower than initially thought), 24/7 fly-in and fix-it capability at the nearest service center, and remember to keep the tail rotor balanced at least according to the maintenance plan (even if you have to buy a Chadwick or whatever) - found this to be a very useful point. Don't remember ever seeing a VFR 109 but they probably exist. I do not care for the squirrly nature of the 135 on approach and at the hover.