Question   How do i set up a free membership with out affecting the paid memberships?

A. Because you are selling multiple memberships you would need the $600 Tool Truck.

A. Under advanced features change "Software Is Free" to No. 
Then, on the join page (/join), you can either enter the email addresses of the people you want to give free accounts to on the right form
OR fill out the left form to create a free account.
Also, you can import several members at once from .csv file using the import members section.

A. The easiest way, if possible, is in the database to temporarily make any suspended members active.  Then make all the members in the membership suspended.  Then from members delete to delete all suspended members.  Then suspend the members that were previously suspended.

A. Yes

A. It can, but it doesn't have to.  You can have multiple payment buttons on the same page.