I doubt you can get much for it, but I also don't think you'd have any problem giving it away, with the new owner paying 2020 MF's and minimal closing costs (using someone like LT Transfers). SDO has excellent trade value, and the 2020 week is good for Interval trades through the end of 2022.
My SDO lockoffs have given us very cost effective vacations into larger units at WKORV/WKORVN/Nanea, Harborside, Kierland, and other great resorts - like the gorgeous 4BR Residence at Grand Luxxe (X2). Next year, I've split up my SDO lockoff for two weeks in a 2BR at Nanea, so I've rented out my WKORV and WKORVN weeks and still get to enjoy time in Maui!