From the photos, it looks like the board is sectional, and you can remove the East in pieces as you reduce the player count. I'm guessing you can play straight Civ and Adv. Civ without any additions with it.

I'm a partisan towards the redesign, probably because I have it (had it made at printplayproductions.) It's really gorgeous and the components are very high quality, and there are no differences in play from the original, other than the errata are fixed. He makes a lot of them, so the turnaround time will probably be negligible. This is how the redesign looks.

https://boardgamegeek.com/image/1598294/advanced-civilizatio...

I don't see it on the printplayproductions site. Has the setup work already been done, or would someone interested in a copy need to re-make the arrangements?

Email the address at the top of the prototypes page. He can only do it by request as a service to you. He doesn't market any game without an arrangement with the author. He'll probably respond with options. I haven't ordered from him in years, so I don't know how it works of late.

edit: this is how it used to work...

https://boardgamegeek.com/geeklist/52127/item/2549854#item25...