With the value of the gift cards so high jail time is certainly a possibility. However, because it is her first offense she should be able to avoid jail. She will need her attorney to work closely with her to increase the likelihood that she will not have to spend any time in jail.
A paralegal cannot represent you at a proceeding. Only an attorney can do that. I suggest you find an attorney to handle this hearing as it is an extremely important component of your case. What happens at that hearing can have a tremendous impact on the final disposition of your case.
No you would not be able to. You would have a limited right to still sue the police, but if the police have a sworn statement from a witness and they had no clear reason to know he was lying you wouldn't have a good case against them. You would have to pursue a case against the one who made the false statements.
The fact you were arrested is not proof of anything. The fact the case was dismissed works in your favor. The amount you will have to pay an attorney will depend on how long the case takes to resolve. Unless it goes to trial it should nor cost you 80,000.
What you should do is get a consultation with a private attorney. While there is no way for an attorney to say for sure, he can give you an idea of what he thinks he can do for you. It is a very worthwhile use of your time to sit down with another attorney as soon as possible to evaluate your case.