That would probably work. We went with the power share on the flywheel because we wanted to run really fast intakes with the full power of two motors. The problem with running an indexer together with intakes (on a generic snailbot) is that if you want to do TT style intakes, the intakes would not be able to flex, and the axles would be perpendicular to each other.
Added this photo to show how the gearbox connects to the rest of the bot
