So spawn rail station in the nether is now build. The hookup- points are labelled down the bottom (follow the rail out). Feel free to hock up your portals. For in rail just hock into the in rail... The station is CARBON but is set up to function in the same way a CARTS station would so can be treated as such.

If your portal has the knowledge or can persuade someone who does then it is possible to run a smart line into the spawn nether station and get access to all the other portals too through the powers of CARBON.

I (tc_chris) will be around to provide technical support for the redstone connection to the station and feel free to grab me in mumble when i am around.

For the SE and SW portals, as rails are not great on diagonals i would be happy to help you run rails via the south portal for inbound to spawn with carbon signal and then the return from spawn can follow the same route or go on a diagonal. Contact me if you want help with this.

Finally the CARBON stuffs The station is set up with comparators CARBON rather than the pistons so runs a 2 tick signal rather than a 1 but they are fully interpretable and there are schematics on /r/mcpverails The address are for the 8 portals and not spawn - for spawn you use your own address and filter off at spawn station before you go into the CARBON router (allows one bit to be dropped in total) The signal being used has one carry signal followed by three information bits.

N 1x100, NE 1x101, E 1x110, SE 1x111, S 1x000, SW 1x001, W 1x010, NW 1x011