Try to contact Craig Richards. He is a "world class" mountain and for that matter landscape photographer. I believe he lives in Canmore and is associated with the Whyte Museum in Banff. He is a LF photographer whose printing is flawless. He stayed with us in Miami about fifteen years ago while giving a workshop. He is a nice guy and could probably give you good advice on the equipment you are seeking. If you reach him give him my regards.