Want a node.js CMS built for SaaS products

We are looking for a team that has already built a website like [login to view URL] or something similar. The different frameworks we're looking at are; sailsjs, apostrophenow, knockoutjs or keystonejs. Here is some of the main logic we want beside basic CMS features; SaaS & Ecommerce Access Control Logic 1. Products (modules) = The CMS is one product a. Unlimited Price Plans with assigned product features i. custom price plans are linked to a specific data set / source b. Each price plan has a supplier, wholesale and retail pricing structure that we set c. A product / module can be add ons to another product and have it's own set of price plans with a set of features for each plan 2. Product features = as we build features we can define the ACL properties a. Assign different features based on a product price plan b. Price per feature as an a la carte option 3. Member Roles a. Determine what products, price plans and features are available to that role Membership Management 1. Monthly eCommerce billing of all the products and features they have for their account We want standard CMS Features as part of the project that will be defined When you apply 1. List what CMS's you have experience with 2. Which one you recommend to be the most scalable framework 3. How long will it take to your team to built something like [login to view URL] but with only one template that we can create into 100's of different templates. 4. Providing a demo log in to CMS that you have built and sign the attacehd NDA will guarantee a chat communication Please only apply if you have a team with node.js experience, can get the job done quickly, quality with debugging tools for future add-ons and good documentation because we want to start this project as soon as possible. We plan on this being a long term contract and after the admin logic and basic features are built the contract will move to hourly