Illinois schools seem to take mid 60 range scores and up so I would be satisfied with that score. But if the school you want to get into has a higher GPA average and PCAT average then you have then I guess it wouldn't hurt to try and improve your PCAT score. Getting it up three to five points should be doable with one to two hours of study every day until the January PCAT.
I would not buy the score online if someone is already receiving their score in the mail. If they received it in the mail then at worst case scenario it was mailed out yesterday....the east coast will probably get theirs in three more days tops. Closer to TX and you will probably get it in less time 1 to 2 days. Don't waste your money for 24 hours.