Make it a European GT.
Standard Malifaux Swiss system but team scoring 3-2-1 (Win Draw Lose) for each individual game so the team element remains competitive throughout the 2 days.
Given the team element will not impact on individual performance, no reason for it not to be ranked so that it should pull in more attendees.
Simple to administer and organize, competitive on multiple levels
Somebody can be crowned Supreme Administrator of Europe