What did he quote you? I bought these to time my truck:
https://www.amazon.com/gp/product/B000EVYGV4/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
http://www.tooldiscounter.com/ItemDisplay.cfm?lookup=FERV765-01
That's way cheap then his he wanted 650 for his.