Hi Bernd
Sounds like a fun idea
Like Grunde says, you should have a chat with the Norwegians, they have a 5 weight distance and accuracy event happening indoors about 3-4 times every winter for the last 4 years and before that several different 5 weight comps.
Like Lee says, 80 meters of floorspace minimum, and high enough to the ceiling, minimum 8+ meters, 10 is better and even more if we're talking the 55 gram event
And if it's a exibition hall/congress center thing, make sure there's no wires hanging down
If possible I would be interested.
Cheers
Lasse
Your friendly neighbourhood flyslinger
Flycasting, so simple that instructors need to make it complicated since 1685
Got a Q++ at casting school, wearing shorts