Congrats, this sounds awesome. It sounds like you are entering into this with the right attitude. Worst case, in a year or three you go back to work (somewhere).
One idea to do before you announce your resignation, make sure you have all your excess vacation/PTO/sick days/leave days used up sufficiently so you don't leave anything on the table. I am slowly realizing my employer has strange rules about getting paid out for leave time that are counter intuitive and totally different than what I am used to in similar jobs. I thought I had a vested right to certain pots of leave time I have accumulated but that vested right extends to only a certain number of hours of leave. In other words, I would be better off taking a few weeks off right before my resignation, then cashing out the remaining leave time. If I resigned with the full amount of leave time in place, the amount they pay out is limit to 30 days vacation (or something like that).