After looking at some install pics of the the Slee washer relocate kit (Slee Washer Bottle Relocation kit - Real time help needed pls - https://forum.ih8mud.com/threads/slee-washer-bottle-relocation-kit-real-time-help-needed-pls.212022/post-3161442) and comparing them against the Wits' End...
I found the cost delta to be about $100, and the used ones I found were sketchy. The ~$100 premium for a new unit (not refurbished) was absolutely worth it to me. However, you may strike gold and find a cheap used one in good shape...probably worth looking around.
Yessir...I called around a bunch looking for used York 210's in my general area. Found several York variations, but all looked pretty thrashed and weren't particularly cheap, so I gave up on used and just went hunting online for a new unit.
Found a seller in Texas who had a decent price on...