$200 for the wheelset?
I'm not sure if the front is convertible. It looks like it should be but Salsa seems to not sell just the endcaps and the whole axle kit with endcaps is $70, not worth it most likely.
I'd consider selling just the rear wheel too, make an offer if you're interested!
That front wheel would fit Joy's bike and her current front wheel isn't that great so I wouldn't mind splitting up the set.
-Steve