I had a hard time finding a grommet that would work for passing the hoses through the wheel well, so I made one. I didn't want to use another bulkhead fitting since it introduces 8 more fittings and 8 more opportunities for leaks. I usually don't like using hardware store parts on my car (except bolts when needed), but these chase nipples worked perfect for what I needed. I'll seal the holes with duct seal. 3rd pic is the back side of the bulkhead. Last pic is all the hoses connected to the evaporator/heater core inside. I'm getting close. I'm going to try my hands at some light metal shaping for AC control/louver panel. More to come on that.