I like this idea. I have actually been thinking of doing something very similar to this for a while now. I think this may be the way that crypto will advance. There would have to be a way to track investments so dividends could be paid. Could work like a crypto stock. The idea of it would actually allow the coin to grow as the company grows. this type of concept could be the future. 
Thats what we would like to do! From what we find until now it is difficult to do this with legal certainty. It will be really costly to make sure we dont face any legal troubles because if for example there are crowdsale participants from 10 countries, I would have to check on the legislation of all countries. And if you will have participants from the US you could face troubles with the SEC. Thats what I found until now.
This is why if we go forward with this, we would stay away from describing the crowdsale as equity or something similar that can set the alarms and consider our coin as a security. Getting our company in legal troubles with different governments is the last thing we need right now.
Why do you want to crowdfund it with crypto in the first place? Bitcoin price is not very stable atm and it could be another risk for your project.
I am not expert in crypto currencies but I understand enought to know that this is the future. Its cost effective and efficient. ABout the bitcoin price I agree with you, its unstable. We would have to see how we would deal with this. We are in discussion with our developers for them to accept Bitcoin via BitPay maybe.