The biggest difficulty with renting out that many points is going to be piecing together a long enough stay to rent a confirmed reservation. It's probably doable though. Assuming you get control of the points in April, that gives you 4 months to use them. I would probably try to put together a week somewhere like AKV or BLT in a 2 bedroom that uses up most of those points and then rent that confirmed reservation. An 8 night Saturday to the following Sunday trip should use most of those points and rent pretty easily. 4 months out is not the time to try to rent the points directly piecemeal.
DVC availability is rough right now though, there's a ton of points that have to be used soon, so things are busier than usual.
Also hit up family and friends that might be thinking about a WDW vacation and let them know you have points for cheap.
I personally wouldn't be counting on that rental income as part of my purchasing decision, but if you can recoup a few thousand you should definitely do it.