Intellichoice: http://www.intellichoice.com/Kelley Blue Book: http://www.kbb.com/NADA: http://www.nada.com/Edmunds: http://www.edmunds.com/
www.cars.com also has a 'black book' valuation, but you must search for a similar vehicle (1993 Eurovan, click on it, then click on the black book value link.
http://ep.com/js/nav/ has tons of vw van ads under vehicles, volkswagen. You can post there or use for reference.
http://autos.yahoo.com/ also has a number of adds for Eurovans for reference.
Once you determine what your reasonable asking price is, let me know. We are currently owners of a disabled '90 Vanagon looking to move up to a Eurovan. Hope this helps!
If you pass on all the RV stuff, these can be as economical as a eurovan. I once checked and confirmed it could be outfitted similar to a eurovan weekender. If you add furnaces, starcool ac, bathrooms, etc and you'd be better off buying a real RV.
There are a few other campers out of canada also. One company converts fords and is called gtrv. Probably just www.gtrv.com. The other converts GM big vans and astros. http://www.parnado.com/ These too can be had in weekender configuration.
2005 was the last prediction for the roll-out year that I recall.
Unfortunately, in USA there are very few available. The only appropriate replacement tire in 205/55/15C or Reinforced now available in the USA is the Michelin Agilis.
Sorry, I cannot help with the Dunlop. I assume there is a manufacturers warranty? You rotated the tires, right?
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