When stuff like this happens I suggest you think of it as worth nothing and would you buy this now with a history of care you know of and the cost of this un mentioned new repair needed. Why do you go so far to a dealer for repairs?
To me these are known for the trans issues and A/C evaps (condenser is usually damaged from road debris and can't blame the car on that. Evaps (in dash) are a pricey repair and if that's done it should be done now for good. IMO with the miles the van would only fetch a low wholesale price when this fix is done but that might be it for a while and what would you replace it with that you had more faith in if not new?
T
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Tom Greenleaf - MetroWest, Boston