Your Rally Sprint is more a Coefficient 2 rally. Minimum mileage for Coefficient 2 is generally 35 miles with less than 35 miles and multiple stages a Coefficient 1 rally. Rally Sprints generally have only a single stage run multiple times, no transits and oftentimes without a co-driver or notes. Not sure who you are planning on sanctioning your event but, suggest you check out the rules as you may be violating some of the rally sprint rules depending on the sanctioning body.
rallydave at pobox dot com