Your portal must be created in a direct line with the walkway (the bit with the copper blocks), so that people are able to walk from one portal to the next. Your portal must be 2 blocks wide by 4 blocks tall. 8 Portal Conduits will be provided for this.
If you want to build a different sized portal, you can do so, but you must speak with the player your portal will connect to and confirm that you will both use the same size (details of where your portal connects to should be on the plot notice).
Sorry to hear about your base disappearing too - need to keep those beacons fueled!
It’s a competition of creativity - not bling-bling blocks. I would hope that even with basic blocks and some creative chiseling you should be able to deliver something special.
@boundmore
Well, there are small and large spaces. So pick the type you want. And check the rules, like size of the portal and put the portal in line with the copper blocks for easy access.