A big garbage bag?

If you want you can get a large rubber maid storage tub from somewhere and use that. That is what I transitioned from when I first got my two plants. If the humidity is up so high let them see if they like their new home. They will tell you if there is a problem. If Ike's humidity drops slow enough you might get a natural climatization process going. It would save a lot of time on your part. It would also lesson the bonding experience with your plants....

You decide. If they only get a little sunlight in the morning and normal room lights, maybe you would want to supplement that with a CFL daylight bulb. Salvia needs a lot of light to make a healthy root system and to grow like mad. You can get them to grow at just about any humidity if you work at it long enough. Just realize salvia does not save its older leaves. Once they curl or go black that is pretty much it for them. Once your plants are a little more stable, then these leaves should fall off naturally. Those are the keepers.

Happy growing and Congrats on your new plants. Any questions just ask and get some pictures up when you can. It's always nice to see some new plants.
P.S. Careful on fertilizing too soon after using miracle-gro soil. You don't want to burn your roots out from under you. Sounds like you have a handle on things though.