P/S pump replacement... what's a fair price?

[Joseph_H]

My '95 E420 leaks oil from the power steering pump. Was told I need to replace it with a rebuilt one. The mechanic at the independent shop said he could reseal the pump with new o-rings, gaskets kit and replace all for $500. Is that a good/fair price?

Dealer wanted $750 to do same. Dealer didn’t recommend changing the pump, but resealing it since it’s leaking.