New Redemption Grab Bag now includes an assortment of 500 cards from five (5) different expansion sets. Available at Cactus website.
I'd be fine with it. SS is a dead card where a RA is concerned unless this whole combo is set up, as would be David's Harp unless trying to run White/Gold which is sub-optimal.
I would add "Demons" to the group David affects since his playing calmed the difficulty Saul was having with a demonic influence.