Support needed to complete WordPress membership site setup

I’m looking for hands-on support to finish setting up a WordPress membership site that I’ve been building over the past couple of years.
The site is already live but hidden and uses:
WordPress
Elementor
BuddyPress
Paid Memberships Pro
The core aim is simple, but the setup has become increasingly complex, and I’ve reached the point where I need expert help rather than continuing to troubleshoot alone.
In brief, the site needs to:
Allow users to register once
Assign them to either a free/standard membership or a paid premium membership
Use BuddyPress for profiles and user interaction
Restrict features (such as messaging/contact) based on membership level
Ensure only limited profile information (e.g. location and interests) is publicly visible
What I’m looking for is someone who can:
Review the current setup
Simplify and correct the membership/registration flow
Configure permissions properly
Get everything working cleanly and reliably with different pages for different member types