Hey Guys,
I found a light blue 1990 caravan at the pick n pull in Oakland CA, and it is a 5 speed 4 cylinder tbi (a523).
180k miles, and is complete with everything you would need for a 5 speed swap.
Just letting fellow minivan tuners know.
http://row52.com/Vehicle/Index/2B4FK25K0LR695677
-Jeff