I have a question: how will the BTC be distributed to noders?

Will it be BTC distributed to wallet? Or 14 BTC worth of CAIx purchased and sent to qualifying wallets?

If it's the latter, will this CAIx be yet to be purchased? Or is it already being held?

I think you can see what I'm getting at: if you have 14 BTC in BTC lying around, use it to buy CAIx and push the price up as well as rewarding noders. This could also create a positive upward trend (or 'pump' to be crude) and negate the effect of any dumping.