I have one. Classics for sure.
They are still available, but have become quite expensive. If you are looking for something in particular and want it relatively soon, the thing to do is probably to notify a dealer who has some leverage. If price is important, I guess it would be best to place an order in the conventional manner, but I think the wait is out around 4 years now.
I see them infrequently in WTS ads, and the sellers generally seem to want fairly high prices. They pop up on Eyab from time to time, too. I think secondary market prices have about doubled over the past 8-10 years; maybe a little more in some cases.
You might try a few WTB ads, and see what kind of interest you attract - maybe here and on USN. Seems like all the MD trading activity had moved to TF 5 or 6 years ago. My account over there lapsed and they wouldn't respond to emails when I tried to re-register, so don't know what the deal is there. I'm probably not in the market for any MD's at current prices anyway.