My son and daughter will be in HS on Tuesday, 8/15, we are checking in that day to BWI. I definitely am going to get them an ILL for ROR. Do you think they will need Genie plus too to ride the other rides at HS? My daughter loves RNR roller coaster and slinky. Will I find ILL on my disney app that morning to buy them? Also, anyone have any idea how much the ILL and genie plus cost for that date? Thanks for any help!