Manual VB for a 42RH?

OD runs off the 3rd gear oil pressure, meaning OD can not come on until the trans is in 3rd already.
OD can then come on when the solenoid is activated, so I don't see why it wouldn't work just fine.
You would have 1-2-3 manual with the shifter and then OD and lockup electrically activated.
Lockup can be activated in any gear.

You can imagine what it feels like to be idling on a lopey cam at 35mph.:D
(Third gear with lockup activated at 35-40) is pretty frickin cool, though it makes the car a little jumpy.