I am going to a convention in a couple of weeks and, since nobody seems to play tabletop Birthright these days (or few in number), I thought I'd try to run a 5th Edition Birthright one-shot during two gaming slots, so that some new people who have no access to Birthright get a feel for the Campaign Setting and hopefully join up.

My issue is that I am not entirely certain I can fit everything I want into a 4 hour session. I am creating 4x Characters per Domain, 7 Domains playable (just about everything in the South and a few others). They get to choose one main character and a Lt, whereas the other two NPCs are vying for control of their domain. Oh, forgot to mention, the previous regents were assassinated at a Sword and Crown event in Ilien that the Spider planned, and with Ilien's assistance.

The main plot, however, is that with the realms divided, the Mhor having to deal with the Gorgon, Avanil and Boeruine dealing with Rhoubhe while also trying to assist, the PCs have to gain the majority or full control of their domain, recruit or defeat their competitors, and rise up to oppose Ghoere from trying to capture the Iron Throne to become Emperor.

Am I trying for too much, or is there any advice that people could give me? I am using the (42?) page rule set for Birthright that I downloaded from here because it seemed the most complete set of rules for 5E.