Thanks Dave/Joel for all in the input. I don't expect to be lugging he laptop through airports etc. The mobility is inside my 45' Class A motorhome (Kayaker has stayed in it). Will always have power - either solar, plugged in at a park or generator (when it rains).
Will be in Glacier the last week of July and Banff the month of August sans week 3. Planning to catch up w/ Jonathan, etc.
Guests with Canon gear are always welcome - Calgary is your airport .