You don’t necessarily need something like that.
Dynamic DNS and port forwarding on the site you want to display the results should be enough.
You can use a dump1090-fa instance with the --net-only option to combine all the results.
Maybe i’ll write something about setting this up in a separate thread.
Then on the remote stations you can use this script (High rise antenna? - #46 by wiedehopf)
to forward the beast traffic.
If you have some networking knowledge or can understand what is happening in the linked thread i believe you can manage setting it up.
I explained quite a bit about the network stuff in that thread so i recommend giving it a read.
Maybe what Sonic suggested is easier though 