SAP Solution Manager 7.2 AIX to Migrate Suse Linux

Hello SAP Experts,

I am supposed to install a new Solution Manager on Linux. Since I am still new to the SAP Basis environment, I am not quite sure how to do it best way.
I tried to plan the system using the Maintenance Planner. But the MP only gives me the opportunity to update the software via the SUM.
I can't plan a new system either, because this system already exists.
I could now download the SWPM and try to start the installation over it. But I don't have all the related packages there.
Which option would you best suggest to me?

Many thanks for your support.

Mario