[cthtpa]

Looking at two ‘66 912 coupes, both still have Nadella half-shafts.

One has had rust repaired and been repainted. Has some minor rust in pan.
Other has original, somewhat faded paint.

Both with Fuchs wheels.
Each has had various recent maintenance: bearings, brakes, struts.

Engines are original, both rebuilt.
(Anyone know how to verify the engine is correct?;
where numbers found and what they should be?)

Mileages are in the 75,000 to 100,00 range (assuming odometers have always worked).

One is for sale for $9000.
Other for $7000.

I understand the Nadellas are no longer made, parts are not available, and a conversion to CV joints requires a 67+ transaxle and shafts.

Anyone know how to determine how much life the Nadellas have left in them?
Is it possible by visible inspection?

Would selling Nadella transaxle to buy CV transaxle substantially diminish the value of the car?

Also, what are the rust areas to look out for on these very early cars?
How severe should any pan rust be to kill the deal?

Based on the limited info above, do these prices seem reasonable?

Sorry for all the questions.
Thanks in advance for any responses.