I don't see a point in selling the OW+ to preorder an XR, like some seem to be doing unless you already have a second board. Keep riding the Plus until the XR is no longer backordered. I think it will be hard to sell a Plus at the moment with the excitement over the XR, but eventually people will be looking at the Plus again as a better option for a second board rather than spend another $1800.
The XR is $1799. With shipping and fender, I don't think you would be hitting $2300.