Wallet Recovery – (Mac users) Found an old Multibit.key file and installed Classic. The keys have been imported and are now syncing. What’s next?

I installed MultiBit classic through searching and modified the Java file to get it to work. I brought the key I think If you entered your password correctly, you will see something like this: Import private key…completed successfully. Your wallet is now syncing. I think it will take a few days? Should I then install Multibit HD? What is the process from here? thank you!