Hi Mary!
Even if you made a plan to have 5 PTLs and you already identified them. I believe that you must still continue to search for more first-level stars.
Sky is the limit. Do not limit yourself. They say the wise-man changes his mind every second. If the situation allows you to continue, you must continue. You don't know what might happen to your 5 PTLs or the economy. It is wise to be on a safe side.
I hope this will help.
Thank you.