Amalgamate 2 Dude Servers

Anyone know what is the best way to amalgamate 2 septate dude servers to make 1 without having to manually add each device.

Background:
I have one server running on a remote site with approx 200 devices.
The second server running locally on my laptop with another 50 different devices on the same network.
I would like to move all the devices and maps from my laptop to the onsite server without having the need to manually add those 50+ devices

you should be able to copy and paste the devices, they just look like xml in the memory. you will just have to manually add the map, but after that it should be an copy and paste, i think the history of the 50 devices will be lost, otherwise you can go play with the exported files and copy the map part into one file, but i would try stay away from that.