Thank you :) The advice is to just do it! Haha. Totally had similar worries about carrying extra gear weight, sleeping together in a tent, long drive, etc. Turns out: she loved it and it’s one of her favourite things, so we’ve been on a bunch of trips now.
Advice from other redditors to me was to bring the Fido airlift or some sort of carrier harness incase of injury / emergencies or if they have trouble keeping up on difficult terrain.
Hope you go on a couple of trips together this year and have an awesome time!