Nothing is going to fit your price range. You might think you could find a high mile Ford or GM van those years that might but they don't make it that far before dieing 3 times over. The Chrysler are pretty reliable those years but are over, so are the Honda and toyota but way over. 2006 up Kia and Hyundai are good but also over you budget. For $1500 you would be hard pressed to find a good 2002 van.
As a serious business I would sell the Mirage and spend $18,500 on a new 2016 Caravan.
2016 Dodge Grand Caravan For Sale at Dave Smith Motors Kellogg Idaho | Serving Spokane, Portland, & Seattle.
Write it off on taxes