What a cool looking dog! My dog Shykis also came to us when my wife adopted her from the streets of Mexico City, almost nine years ago.
I'm sure Sebastian will love his gift, especially once it gets associated with fun outings (where he doesn't have to run for long distances). I know Shykis would be psyched. She loves to go out (naturally) but gets tired after an hour or so, also normal for her age.
Thanks! He's adorable and obedient when it's just me and him, but he has issues with strangers. I can't let people pet him.