Classic Ortofon Cartridges: The MC2000 MK II or the MC3000 MK II?


So I have owned quite a few Otofon cartridges over the years, everything from the modest OM cartridges to a couple of Cadenza up to an A90. I typically enjoy Ortofon cartridges.

Now one I have never owned is the MC2000. It seems from a bit of reading I have done that owners of the MC2000 felt it was the most accurate of the Ortofon cartridges, and that releases after it were not its equal.

However, when you look at the MC3000 it has a higher output level that would allow it to work with my Esoteric phono stage. The Esoteric is happy running an MC200 on it which has .09 mV output. but the MC2000 is .05 mV. The MC 3000 MK II is .13 mV from what I find.

Has anyone spent time listening to these classic MC 000 series of Ortofon cartridges? I know there is also a 5000 and 7500, but those seem to be pretty rare.

Regarding the MC2000, I wonder if I use a low mass headshell if I can use it on the Dynavector DV505. I don’t think the mass of the arm in the horizontal plane should affect it, and the vestigial arm can be configured to be an appropriate match for the compliance on this cartridge.

I currently have an MC200u on the arm and its very surprising regarding how good it sounds. Its actually pretty neutral, pretty expressive, but just a bit relaxed in the top end. I certainly enjoy it, but I wonder how these statement cartridges from the classic Ortofon line will sound. These would have been from their long time designer who has now retired, so its a different era of Ortofon versus what their current offerings are. Even though we should acknowledge that the current cartridges use design principals that were developed from this earlier time period and engineering team. 

Thoughts?
neonknight
Apologies for going off topic and referencing Beryllium.
My advice to express Caveat Emptor for such types of sale adverts seems an appropriate guidance.
It's true that buying any vintage cartridge a buyer must have trained eye :)) 
In my opinion, the remarkable thing about the MC2000 is that it does use an aluminum cantilever and a line contact stylus.  Neither is really very exotic.  Yet the sound is sublime in either of my two audio systems.  This is evidence that one ought not to judge a cartridge a priori based on the materials of which it is made.

Chakster, You wrote, "The question is who is your supplier, you can buy NOS MC2000 only from serious collectors of vintage high-end, and they can honestly describe the condition. My NOS sample is absolutely perfect and fully original, I am so happy to have it in my collection of the best LOMC. Never seen a NOS sample for sale, only hardly used or damaged samples."  But you MUST have seen an NOS sample for sale at least once; otherwise you wouldn't own one.  My advice is, if you have not already done so, see how it mates with your 4212 current-drive phono stage and report back.  It's not going to give you any of the pleasure of which it is capable while sitting in its OEM box.
I bought mine long time ago, then I tried it with Gold Note PH-10 phono stage, then I put it back into the box. Too many cartridges here, at the moment my current mode phono stage working in my system with FR-7fz. What surprising me the most after a long long break is zyx headamp with my FR-7f. 

However, If there will be another NOS MC2000 somewhere in the future I will place a bid. 
I looked at those two MC2000 on eBay, and they do have issues with cantilevers. One also has surface corrosion. That unfortunately seems to be a common occurrence with audio goods from Japan. Neither one is of interest. I imagine obtaining a properly operating MC2000 is going to be difficult. I suspect I will go another direction.