Do you have Ars Magica 2? If so, then the gateway multiblocks should work just fine. If you only need two gateways (one two-way connection) then you don't even need keystones. The only "hard" part might be getting enough ender pearls, but even that's not so difficult.
The other "hard part" is that the distance between gateways makes them cost more to jump from one to another.
And remember, even if one has thousands of gateways, all one needs is a single keystone with the new system, assuming the gateway doesn't require one like the other keystone lock systems, and that's the one you hold. Only needed two before, 1 for the gateway's that are private, and one for you to access them with.
(since keystones don't make a network, one needed a keystone for every lock, and the one you use to access them anyway, hence why only adding a keystone lock to a private access made MUCH more sense, and now one does that anyway since they use "ghost block" style now)
