Kong dispenser? That sounds amazing! One tip would be to make sure he gets a really good walk in before you leave for work. When walks didn't seem to tire Baxter out, I started playing fetch with him in our complex's tennis court. It wears him out pretty nicely. When I had more time to kill in the morning, I used to take him to the dog park. Basically I would just try to "exercise" the chewing demons inside him before I would leave for work. Another tip would be to try to do a few practice days before you start your job and internship. Pick a day and leave him alone for 8 hours. You could even start at 6 or 7 hours if you want to gradually increase it. Good luck!!
HAH! They are such BUMS!! (mine too)
I walk Bugsy 30-45 min Every Morning, after I make my coffee (to bring with!). He usually has his breakfast before we go. He has a good romp in the woods or through town. Then he settles to chew on the chewie dujour at daddy's feet (if he's home). If he's left all day, I come home to find him lying in his crate; a little corgi ball. Sometimes he's on the couch fast asleep (BUM!). The only accident he had was when I didn't get home until after 7pm - so I don't fault him. If I think I'm going to be gone really long, I set up the port-a-pen with the crate just in case. I also have phone numbers of a few friends & neighbours incase something should happen & he would need to be let out.
I know he mostly just sleeps all day - his chewie will be where it was when I left. lazy bum. ;)
I always reward him for being a good boy with a good evening walk...