I have one that has been in the scope 2 or 3 times. There is NO wear, setscrew marks, etc. Like new with the box. Celestron doesn't provide caps. Don't under-rate these, they are better than their price hints.
I would sell it for $37 post-paid in US.
Would trade towards a 25mm or 12.5mm Ortho. Prefer the University Optics Abbe, maybe a Celestron.