If it were me, I'd probably use one award from SFO to CLE with stopover in ORD on AA,UA. Then just take a bus or rent a car for peoria. For east coast I'd either open jaw into Philly out of Bos, or sfo-bos with stopover in NYC, and train from NYC-PHL. This kind of depends on specific dates though. it looks as though she will have 3 weeks to kill between cle and phl, so it makes to sense to go back home. If that's only 2 days then diff. story.