The “poor man’s” approach might be to create a shell package that has only the desired folders. I guess you could have shell services too.
Then when you want to “instantiate” a new package, create the new package, then copy the top-level folder of the shell package to the new package. Then, and this is VERY important, rename that top folder in the new package to match the name of the new package.
Not as nice as a wizard but might be workable.
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