What is the main conflict in Another Roadside Attraction by Tom Robbins?

Rogue scientist Marx Marvelous tells the story of free-spirit Amanda and her soul mate, the famous artist John Paul Ziller. The couple starts an unconventional zoo and hot dog stand, where they explore a new spirituality. After stealing the Corpse of Jesus Christ from the Vatican, John Paul ends up presumed dead. Amanda remains as a symbol of a new spirituality.