4wd system diagram for you + 4wd solenoid replacement?

Hi fella's,

My 4WD is not activating which is due to one of my VSV solenoids being dead. There are two underneath the van to operate the 4WD actuator.

I can't find the part, and it's out of production, so I might have to fandagle something with a suitable 3-way solenoid. I don't know much about them so I need some help.

Could anyone tell me if any old toyota 3-way switch would work such as the linked one?

https://www.amazon.ca/Aisin-VST-012-Vacuum-Switch-Valve/dp/B00NFJIFNC

The solenoids that switch the vacuum into EGR valves will probably do the job....