I've injected the combined Alpha/Beta Map into a Myst World (accessible from my base in the overworld, currently).
The port will drop you into the water near Beta spawn (PiCECraft 3.0 spawn)
To get to 2.0 spawn you'll have to travel a long, long way northwest. If you can find the HTP rail system (Also north of spawn, it's a drop-in near a bunch of candles) it will take you ~7km... really close to DE's old base.
One thing, the last person to leave the old world causes a backup of that world to disk... which, last night anyway, caused the server to lag out (but only for a moment or two) but did require people to reconnect. I will see what I can do about that.