Before establishing the church, you should read Pastor, Church, and Law by Richard Hammar the Federal Tax Code sections on religious exemptions, that'll get ya belivin' you bet your roots Toots. Whether your personal god is Hairy Thunderer or Cosmic Muffin let me tell you that reading that Code will convince you that the Lord Your God had the old divine hand of guidance on Congress' rod of power they day they wrote that thing.
Hell by virtue of the State of Iowa I was granted a PhD after almost a decade of stupid intellectual gymnastic tricks, and the same State of Iowa also - because I had a piece of paper that cost me $25 bucks from some mail-order ministry and oil lube shop - granted me the right to marry my friends as a reverend of some church that never really existed, I am the Reverend Dr. Kat (thus paying homage to my two favorite preachers, Reverend Ike and Dr. Gene Scott). So we could file the papers (with the IRS, you don't have to file anything with god, I checked) and become The First Church of the Presumptuousness Assumption of the Blinding Light anytime we want to.
And because our chief tenent is that god helps those what helps themselves (I'm thinking God Bless the Child by Billy Holiday as the opening hymn) we will always be successful. And because we believe that in order to become one with the creator and creation you need to either a) listen to a hella lotta John Coltrane, or b) get out to the beach, forest, mountain top, sylvan meadow, or beside the Rivers of Babylon and just shut up and sit there - "No. Shut up and sit there." - we won't have to worry about guiding anyone's spiritual progress either.
And the congregation there at The First Church of the Presumptuousness Assumption of the Blinding Light will be secure in their knowledge that when the Saint's come marchin' in, their very own Reverend Dr. Kat will NOT be in their number because the lord provided Kat with an eight-hundred mph, $65 million tax-free dollars Gulfstream G650. Bitches.