Teardown Day 2 & Cam wear quandry

[Mark Denovich <mark@domain.elided>]

So I pulled the oil pan today.  I found some more RTV *surprise* and 
realized that the new oil pan that came with the car is the wrong type. 
  It's about 1" shallower, and has slightly different mounting holes. 
I think it is for later 1991+ motors.  (Anyone need a new style pan?)

I also pulled the cams.   I'm wondering what "acceptible" cam wear is, 
and if I can get away with just replacing some tappets.  Tom Sahines 
gave me some advice to detect wear, but I don't know how much is too 
much.  I can only see the lack of mirror finish on the tip of 3 of the 
intake lobes.

I took some extreme close-up pictures* (of the worst lobe and tappets) 
and give a better description here: 
http://alfa.denovich.org/twiki/bin/view/Alfa/EngineTeardown#DayTwo

So what do you think?  Think I'm good for another 20k miles or so? 
Should I replace the tappets?

	--Mark
	The Alfa Wiki: http://alfa.denovich.org

* In case anyone is interested:  I'm using an Olympus 3030Z camera. 
It's a 3 mega pixel camera, with a 2048x1536 max resolution.  For the 
closeups, I used 3 stacked magnifying lenses in macro+spot focus mode, 
manual focus.   The images are as they came out of the camera.
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