Need the 3000 for the AC. You'll overwork the 2000.
The Honda companion set up is not available in Canada in the 2000. Only on the 1000. Apparently it is illegal here according to the dealer. It is a great set up and next trip down I might pick a couple up.
Another option is the 3000 with no electric start and they have reduced the weight down into the 70lb range I believe. Catering to the camping crowd. It is pricey though at close to $2400