Che bello avere un altro compatriota...

In answer to your question, the NVA, in its last days... -some say the last four weeks

- adopted a camouflage scheme other than the normal flat green. To see photographs of an Ural in such a scheme, you should buy this book:
http://cgi.ebay.de/Suhr-NVA-Fahrzeug...item4cf2a20be1
where an Ural has been restored in that scheme. There are other vehicles in the normal green in the same book.
I am not sure I have EVER come across a period photograph of ANY NVA vehicle in that camouflage, which is not to say that it was not done, but just that period evidence is scarce.
There are, on the other hand, a number of restored vehicles with that new scheme, but I strongly suspect that in most cases it was just the desire of the owners to do something different... which might be your own too

Just in case you wanted to go for the green, I can tell that you that there are endless debates as to the exact shade. In its original form it is
most closely approximated by RAL6003. That's the colour I used to finish my own vehicle and bits of NVA equipment in their original factory finish do look VERY close when put side by side. However... veterans say that the standard green was used unmixed only for various bits of equipment but that the vehicles would be painted with a mixture of the green with some black added. How much black, it does not seem to be recorded anywhere. I remember reading one veteran saying that even vehicles of the same regiment (or of nearby regiments) would be in very different colours as the mixing was not done to any prescribed standard... In so far as period photographs can give any indication, it is certainly true that there seems to be a LOT of variation in the shade of green. I suspect that for the parade in Berlin, all vehicles were however repainted in green without any added black because they all look much more uniformly coloured...
I am sure you did not want to know all this...

but there it is...
Buona fortuna!