Go with the Redeye axles and diff. It will fit.
Going to be honest, I know quite a few people that have broken/damaged DSS axles with far less than the rated 1400hp, but its almost unheard of to break a Redeye axle. The AAD suspension is a nice to have but not necessary, and the diff brace should be strongly considered.Why not just get DSS axles? And a stock rear? With the brace and possibly an AAD rear suspension upgrade to square it all up, I would think you should be plenty fine