The authors have addressed most comments of the reviewers. I agree with the authors that not all information about the complex optimization and analysis models should be included in the present manuscript, as this information is both available in other, cited works, and also not strictly necessary to evaluate the method and the results of the case studies.

One issue that might cause some confusion is the use of the term "integrated" for the optimization. In multi-disciplinary design optimization (MDO) this is a technical term that indicates that all design variables are varied simultaneously across the different disciplines. According to this definition, the present manuscript does not perform an integrated optimization or integrated sizing, but a sequential one. The authors use the term in a less technical sense to indicate that their optimization method covers all relevant disciplines. This is potentially confusing and should ideally be avoided. However, as most readers will not be familiar with the technical sense, it seems acceptable here.

Several references are not easily accessible through a link or a DOI. Among those are:
Bottasso C.L., Croce A.: Cp-Lambda: User’s Manual, Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, 2006–
2016.
but there are many more. Please find links to those (particularly manuals, conference papers, reports), such that the readers can easily access that material.
A direct link to Chaviaropoulos InnWind Report (which is 1.23, not 1.2.3) must be present.
The associate editor expresses concern that the term "integrated optimization" is not technically completely correct. Add a sentence in the manuscript explaining the difference.
The sizes of the labels of the axes, the numbers on the axes and the legend in figures 3 to 10 are not large enough. Please adjust.