You state that you would be working free for a year? I would think a decent chunk of equity with some percentage payout+vest at first funding round is appropria

You state that you would be working free for a year? I would think a decent chunk of equity with some percentage payout+vest at first funding round is appropriate especially if you are a co-founder. You gotta eat, right? What type of tech/MVP is it? You don't have to be specific but if its a SaaS and CRUD type of app you could work on MVP on nights+weekends. I wouldn't spend time architecting much (e.g. planning for scale, hosting, CDN, etc.) until there are paying customers, keep it as simple as possible to start and be small-a agile in the sense that you can pivot quickly.