85 Lebaron T/C Mark Cross Conv.
 

I've recently acquired a 1985 Lebaron Town and Country Mark Cross Convertible with Turbo.
It's been in the shop for 2 months and finally down to the last necessary
part and dealer says it's obsolete. Dealer calls it a 4 port Vacuum Solenoid.
It mounts in the engine compartment against the passenger side wall above the wheel well.
Can anyone advise where I can purchase new or used part?