Lots of ways to keep an "automotive theme" in the shop. Gotta have that front bench seat sitting on the floor (NO recliners, lest it fall over backwards). But in more recent times, some "base" to raise it off of the floor for easier exits. A quality AM/FM/Tape radio running 4 6x9 speakers, using a Group 27 battery and trickle charger for power. Some sort of portable a/c and heat producers, too. Along with running water and such. OH! Can't forget the fridge! Maybe even some of the "hot air" ovens or a microwave. Or a piece of carpet in the social area.
AND, of course, a comfy old sofa to dream on.
Enjoy!
CBOdy67