You should try to contact the owner of Walnut Creek Seeds, Dave Brandt, he might be able to give you some good tips to how you can eliminate that tillage in your organic system. You can find videos of him talking about soil health and all of what that implies.
using a roller/crimper will greatly help the drill or planter to get the seed in through the thick Thatch layer your seeding rate should infact be less with a drill. the roller crimper will make sure you can keep that seed rate low. also row cleaners on a row planter or transplanter will assist you and can infact be 100% no till even on organic vegetable production. check out Ray Archuletta with NRCS east tech center, he does magnificent work.