I would recommend keeping your priesthood, pension and benefits and continue your ministry and build this as a side project or seek donations to fund it and hav

I would recommend keeping your priesthood, pension and benefits and continue your ministry and build this as a side project or seek donations to fund it and have contractors build it. I don't see anything pressing that has to take you away from your current career. I would make amends with your church and build this concurrently. If things take off or you get funding eventually then quit your day job. Start listening to StartUpsForTheRestOfUs.com lots of great advice for just your situation.