www.tomyang.net

Try Parker Hall. Parker makes a beautiful repro tool roll that is correct in every way for $450.00. The repo wrenches cannot be used as they are cast. You can buy modern Beta 55 wrenches for about $100.00 for the set from gg mecanica in Colorado. Parker also makes a repro hub puller(very useful) for...

Try Fram CA656. This is a perfect fit. It is also a Fiat 850 application.
Probably somewhat less expensive than asking for a Ferrari filter. LOL.

Try using Loctite anerobic sealant. I have used it on all the fuel fittings with great success.