Hi,
"PlayMaker Custom actions" will need to be in your package ( If it uses custom actions stored in that folder), the rest will be imported when the user imports PlayMaker package.
I have a small utils that lists and select all custom actions so you know where they are, if you want I can send you that.
In all cases, you'll have to do the testing dance of creating a fresh project, importing PlayMaker and then your package to see if it all works ok.
Also, very important, I use uTomate ( on the asset store), and that's AMAZING!!! if you are planning on making complex packages, this is a must, you define once what files to include and then you press a button and it does it perfectly everytime, no need to remember always what to include what to exclude.
bye,
Jean