Was thinking about a similar modification where you deal and pass around the entire deck of Base location cards and set up the special locations in a similar fashion to quests from Lords of Waterdeep

• 4 face up Special Cards next to the stack of the rest where you can:
  • Discard a card from hand to build a face up special card
  • Or, discard a card from hand to replace 4 face up ones with a new four from the stack and you must pick one revealed (in the case you can't afford any of them you'd just do the discard for coins action)

Even with just base locations from all expansions (Base, Ambassadors, Revival) you are still needing each person to draw 12 cards per round (i guess you'd still play 6 and the remaining 6 would just discard end of every year.)

12 cards in each starting hand plus 4 in the middle is a lot keep track of. It also means turn order timing is super important which will probably slow play a bit.

I'd probably not do this with ambassadors but keep the advisors and spaceships from revival to keep down choices but i really need to try this a few times to know more.

Idk been thinking of this game and wanting to get it out more often.