Portal 3.5 integration with API Gateway 9.3

Document ID : KB000100508
Last Modified Date : 16/10/2018
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We have installed CA Developer API Portal version 3.5. We are trying to integrate this with API Gateway version 9.3.  We are following DocOps for this integration process but the install seems to be failing. Could someone help here on how we should proceed for this integration?
Normally the 3.5 tgz file should be found in gateway folder of the portal iso that is downloaded from our support site. But, out of the box 9.3 is not compatible with 3.5. Because 9.3 was not released yet when 3.5 was developed. To get portal 3.5 to work with gateway 9.3 you will need to download the Gateway_9.3_Setup_with_Portal_v3.5.zip from our patches and solutions page (link provided below) these files are used instead of the 3.5 tgz files. There is a text file inside the zip that covers the install steps. The steps are basically the same just with the new file names. The install process also requests that you update to the latest portal CR, which can also be found on our patches and solutions page. 
Additional Information:
Solutions and patches: https://support.ca.com/us/product-content/recommended-reading/technical-document-index/ca-api-management-solutions-and-patches.html