no need to take extra canopy courses IMHO. from my 180 jumps i have, i landed about 80 in altitudes from 2800m - 3800m.
the most important thing you should think about is your cypres settings. could be a problem with an cypres expert, because you can only adjust LZ altitude up to 500m (1500ft). may not be enough for you, depends on where you start. military cypres would be a solution or turn it completely off, just don´t forget about it.
the second thing you should consider is the thinner air -> means more (sinking) speed, less flare.
and last but not least, the lack of alternative landing zones in alpine areas, in case of a mal, or just a fuck up during canopy flight.
i can confirm...