[Sombre]

If you pick a block range of site IDs that conflicts with the fewest number of the /popular/ mods (CBM, Nation mods, etc) then post in the threads of the conflicting mods where they are still active, asking for a site ID to be moved and suggesting a currently free alternative, you could make the mod clash free with the minimum of hassle.

Making it clash free with every mod is impossible, so I'd only worry about the popular ones. I think this mod could happily lay claim to block range of about 200 IDs or something and the mod manual/user documentation on this forum could be updated to reflect that those are reserved for giant site mods.

After all 99% of mods use like 1 or 2 site IDs, so it's no big deal to move them or have less available.

I'd happily edit my mods to move the IDs to avoid clashes if you pick out a specific range that belongs to site only mods (not just this one, but any further compilation site mods). This isn't something I'm willing to do for other nation mods, but as I say this would represent very little work on my part and since this mod could potentially be very popular, would be worth it.