Hello, my name is Chinese_T and I have a suggestion for you guys. Why don't you guys post a world download for the old plotworld? It's easier than /plotsave and some people still have builds they want to see from the old plotworld.
If players want their build moved over they can submit a support ticket using http://ajgaming.net/support/
Just as a little extra information, the old plotworld was ongoing for over 4 years, the world had more than 15 million region files and 35 million chunks in memory. The entire world game to a total of 210 GB of storage, Taking the average internet provider 2-3 days of solid downloading time. It is not practical or possible really! Sorry.