If I were building something from scratch, I'd probably try to come up with a way to give other investors (everyone except for me) veto power over the Exodus Address funds. That is, if somebody thought I was using funds inappropriately, there could be a vote, and I would respect their wishes by trying to find an alternate way to accomplish the goal.
Votes would probably be based on investment size, although that would obviously be dominated by the mystery person who purchased 420BTC worth of MasterCoins.
Obviously, this veto power would still require people to trust me, but they are doing that anyway.
Another way would be to nominate a couple people to hold this veto power. I think Ripper and Vokain would do a fine job, given their obvious interest and investment in this project, although spiral_mind will claim they are just sock-puppet accounts which I control.
I think that can work out quite well. After getting approval from Vokain and reaching a decision, you might want to add this to the OP. A further step would be to send the funds to an m-of-n wallet controlled by the three of us. This can happen at a later date, and doesn't necessarily have to happen anytime soon. (Us having veto is almost, almost like any-two-out-of-the-three-of-us-can-vote)
I like that. I want nothing more than to see this project through, and as a hopeful budding entrepreneur, I do see ways we can make this project truly the Second Bitcoin Whitepaper. The main emphasis should be on communication, communication, communication, and from there I believe everything will work itself out in the best possible way. I'll look at getting a secure laptop on which to store said keys right now. In the mean time we can discuss the specifics of how this agreement would work.