At this point, that's really your only option. Sounds like she's definitely egg bound though if she's not moving much. I would do it several times a day to ensure she stays hydrated and hope for the best. The only other thing I can think of is if there is a way to lubricate her but that would take either knowledge of her anatomy or a vet willing to essentially do an enema into her oviducts. Either way, good luck with her.