Hi @Baba70,
That looks like a project you will need a developer for.
I know the A8 Labs guys have developped an advanced customer portal and published it on the market place so maybe they’ll be able to help you out @JonathanS ?
As for making this available within wordpress, I guess it depends on your budget and your main objective.
An out-of-the-box portal can fill most of the requirements you listed and you’d only need to redirect to the portal or even embed it on a page, and this can cut development costs by a lot as well as considerably speed up the process.
Hope this helps,
Ludwig