yes, this is a good way to start a legal business and the first thing that i usually look for an exchange. because most of them are built to get money from their customers. with legal docs in place, an exchange will make sure that they are following the protocols.
The ICO phase will run for more than 6 months? isn't that too long to collect some money from investors?
What's the ICO softcap and hardcap?
i think that's one hurdle for potential investors. long running ICO means you need to expect that your money will not be seen for a year at least. because there will be extensions or delays in exchange listings and other obstacles along the way.