Here it is:
It's large, but it works. The fittings are the same OD as the stock vent hose. I made coupling sleeves out of some larger diameter hose and snugged it all up with hose clamps. That's just what I had laying around. I'm sure it could be adapted better with a bit of glue and some plastic vacuum connectors.
The wiring pigtail is EC848. These are late '90s through I think 2010 Chevy/GMC parts, so I imagine they'll remain available for the foreseeable future.
87 GW "Big Bear"
76 J20 project "Ox"
90 GW parts rig "Velma"
77 J10 parts rig "NoMo" (as in "no more Jeeps, Corey!")
94 YJ "Coop"
88 GW "Hercules" (had to sell in '08, curious who has it now)
83 Wag parts rig "Shaggy" (used to build Herc, then scrapped)
73 J4000 (had to sell due to PCS in '07)
75 Cherokee "Jerry Lee" (sold in '13 because I'm an idiot)
74 Cherokee "Dino" (used to build Jerry Lee, then scrapped)