Hmm multipitch sport. Where is there multipitch sport (besides Infinite Bliss)? If it was me I'd start leading sport instead, starting easy or on a gym lead wall. Then once you can lead (or if you already can), practice some multipitch-like skills by leading a route, converting to rap at the anchors, and cleaning your own route on rap. That will give you some experience with hanging off of the anchors and switching from one mode to another up off the deck.
Or, just find a trad climber and follow them up a route on the Great Northern Slab at Index...