Some things to think about (if you haven't already):
*If you cancel the reservation 30 days or less before arrival, the points will go into a holding account.
*Banking deadlines. You didn't specify your use year or if your ressie is using current or borrowed points. I'll assume you wouldn't be thinking of renting if you could cancel and then bank the points.
I agree with fkj2 that Ocotober is a very popular time for BWV. It's Food & Wine Festival time at EPCOT and there are several other special events happening during October.
My advice is to try to rent out the reservation as is. (My understanding is that there isn't much availability this fall so renting points without a ressie will probably be much more diffficult and definitely more of a hassle). I do not agree that you should list it for $7 or $8 a point. Due to current lack of availability at BWV and the fact that you already have a ressie, I think you can get someone to pay $10 per point. You have until 31 days before arrival to cancel the ressie and try something else.
Good luck!