I read through a few old posts regarding insurance, but didn't see a specific answer to these questions.

We have several bikes between the 2 of us and I'm wondering if others have their bikes individually listed on their home owners. If they all got stolen at once, I'm thinking it would be hard to collect for $30,000+ worth of bikes without prior proof that we owned them.

Here's my questions:

Should I have them listed on the policy?
If so, how much more should I expect to pay?
I have an excel spreadsheet listing all the parts on each bike, should I give my agent a copy?
I'm assuming static pictures of each bike would be beneficial?
Anything I should or shouldn't mention when having them added?
What about race wheels etc?

any guidance/feedback appreciated,
David