Re: Question about Sportsmobile Shopping
That era Econoline should have an overdrive transmission in it (E4OD). Make sure it shifts through the gears nicely and firmly. Early generation E4OD's like this one were sometimes prone to failure but that is typically in a pickup application when worked hard and overheated. If it was me, I'd plan to have the tranny fluid changed unless there was evidence that it was done recently.
IF it for some reason has the old C6 transmission, this only has 3 gears and no overdrive. Depending on your rear end gear ratio, this could be a deal breaker for cruising down the highway. The C6 is about as dependable as a hammer, but that lack of OD and lock up torque converter doesn't make it very economical for fun for freeway cruising.
If you are unfamiliar with the newer (92+) body style vans, you might want to go check one out and see if you can test drive just so you know the differences.
For my family, we are fine with the older vehicle as it allowed us to enter the world of Sportsmobiles that we might not have been able to financially swing otherwise.
2009 Express AWD, CCV Top & 50-ish home build. Daily driver/camper/kid hauler