This is bit tough to say anything without check the current condition of the site. I am not like others and I do not want to make any false commitment too. Please let me know what is your best time for discussion so that I can check the current site and go through with your fixes and requirement one by one.
In a word, you have placed the list in your requirement and I am assuming there should be so many thing which need to accomplish behind this. Normally, Membership site has no end bcuase you may add any service there and provide access by your membership plan. I suggest Membership site with Drupal instead wordpress because the modules provided by Drupal allow staff members to add and organize products in Drupal Commerce, restructure pages, review detailed Ecommerce reports, and manage Search Engine Optimization, all with a few simple clicks on a customized Shortcut Menu. Drupal 7 is so user friendly and intuitive that even the non-technical team members were creating custom Ecommerce Reports using Views.
Regarding your required fixes it is really difficult to understand what exactly you mean, can you please elaborate a bit?
Benefit:
- Payment plans are broken down to milestones, and include penalty clauses for late delivery.
- An one month warranty is given with all projects
- All correspondences will be replied to within 24 hours
- I will send you screenshots and samples that how it will look
I will wait for your message to move further.