19?! That's incredible!!! That makes me smile.
For me? I say take the pup... You'll have company and the puppy will absolutely love being on the road!!
Bottom line, I couldn't do it without my dogs. I had a 16 y/o cattle dog who passed away last November who I traveled with for years in vans, RV's, planes, trains and automobiles... You name it. I got my Shar Pei/pit mix the summer before she passed, he's going on 2 years old now... Thanks GOD he came into my life when he did. Had she passed and I was left to my own emotions on the road without a pup to cuddle, IDK what my head would've done.
Back in April some friends and I rescued a litter of 9 pyrenees/lab puppies from under an old abandoned trailer in the middle of the AZ desert like 8 miles from the highway.... I kept one of the puppies and she's already 80 lbs at only 7 months
When we found the puppies I could literally carry four of them at a time they were so small and as I'm watching her grow there was a certain bit of anxiety because I was afraid she was going to be too big to stay with me but much to my surprise the three of us fit quite comfortably in there and I haven't even gotten around to my build out so there's a lot more room to be found. Plus, they keep me warm AF on these cold nights and I know there hasn't been many since she came into my life but I have a feeling I'm going to save a lot of money not having to buy propane to eat the van this winter thanks to them.