guys ARL are running a fun league for F3 and are pulling in 19 drivers a meeting with a mix from all over the world , 33 in total have signed up for it and its growing , i only found out about it by visiting thier open race server and joining a practice event, the format is simple and FUN with a wide spread of driver skills and ages.
The fun angle is the important thing , if you propose to race f2 in the wet then that is not fun racing , its not even racing its just an exercise in survival , the f3 wet race we run was bad , f2 with the power they have would be a waste of time .
Maybe you should think of having an open server to advertise the league and draw in drivers, check this out