I did the same thing about six years ago. The first dog, as it turned out, hated his new brother. The new guy, however, wouldn't leave dog prime alone. Things improved dramatically when a third dog followed us home one day and wound up staying (this is a long story and does not involve us stealing a person's pet) . That took the edge off the whole situation.
Anyway, you've got a big, active dog there. Also a dog that (typically) will bond with other animals. That said the "company" you might provide he/she with is limited by your domicile. Its not like they will go running together around the living room. Dogs, if they bond, will do things like sleep on each other and huddle together when stressed. And sometimes get testy and fight over chew toys without you around to break it up.
I can't give you yes or no advice here. I will say it is not practical. That said you cook for a living, like myself, so we both know practicality can be over rated.
Maybe a cooks with pets group could be started here? Not volunteering..just saying...
--Al  | 
