In any event, I would have a bulletproof plan to have it gone by Oct 8. Storage fees will kill you. Have you been on the Sprinter Forum? Might find some interest there but you are in fire sale mode and in a part of the country where there is little knowledge/interest around these vans.
It is near impossible to find people to work on a functioning Sprinter, and only certain dealers really have the expertise to know Sprinters properly.
You need to have this gone and move on with your life. You do not have the skill set, location, money nor time to deal with this. Cut it lose.