Multiple membership levels accessing one set of members-only pages?

I'm creating a site for a non-profit with 4 levels of membership (different pricing for each), which all access the same set of membership-only pages. It seems that Squarespace member areas would require different pages for each membership level - is this correct? Rather than keep up with duplicate pages, my thought was to use ecommerce and "sell" membership levels as services and then have 1 membership level where they can all access the same pages. Is there any easier way to do what I need to do? Thanks!

@judyc If you're still looking for a solution, MemberSpace allows for this functionality and they have a free plan that integrates with Squarespace! One feature they offer is tiered memberships, where you can set up as many plans as needed and then choose which member pages they should have access to.

For example:

• Tier 1 for $$ per month: Access to /page-1 and /page-2
• Tier 2 for $$$ per 3 months: Access to /page-1 and /page-2
• Tier 3 for $$$ per 6 months: Access to /page-1 and /page-2
• Tier 4 for $$$$ per year: Access to /page-1 and /page-2

Here are some helpful links:

MemberSpace  |  MemberSpace vs. Member Areas  |  Instructions for how to install it  |  Pricing Tiers

How would accumulating tickets work? does it add up itself?