Also at 4800ft high and only 430m long you might struggle to get in and out with the usual run of the mill GA types. C182 would prob do it...
Even with a deiced twin though you still need good enough visual conditions to land in what, by normal airfield standards at least, is quite a tight little spot.
Don't have the French charts to hand but getting to Annecy, ie proper airport, might be more realistic and then drive an hour...