Used high end ranges....which are the best brands?

Buying a new range this week and being that im outside of NYC, theres tons of really great condition used ranges from multi millionaires constantly renovating their kitchens. Theres a lot of warehouses by me that get them from contractors and then just refurbish them a little and sell them for relatively cheap, some even come with a short 6 month warranty.

Im looking at 36' ranges between Viking, Wolf, and Bertanzoni and trying to keep it under $2k

My question is more based around which brand is the easiest to repair and find parts for. Im pretty mechanically inclined so Im used to fixing appliances and stuff around the house.