Collection of Spare Parts for Type 44

[mboucher70 hotmail.com]

I’m about to order some blown electronic parts for my Audi from Force5.  Still planning on keeping it around a few more years, and knowing that parts are becoming scarcer, I was wondering if there’s a few common relays or easy to ship parts that have a high failure rate.  For example, I’ve already got a spare ICU and ECU (acutally I repaired and tested the old one after replacing them).  Plan on picking up spare window switches as those seem to go every few years.  What about the fuel filter relay, or all the other relays either in the fuse box or near the driver’s leg?  

Finally, anyone had luck with replacement glass for side mirrors?  The type that simply stick on to the existing glass?  

MC
(Audi 100, 1990, Non-Turbo, Non-Quattro, NF engine)