What Should I Charge For A Basic CRM Implementation? (Active Campaign)

Recently I've had a client asking me to implement their CRM and manage it for them and handle their email marketing. I'm not currently in the CRM business and all of my other clients have their CRMs implemented already. I started doing lead gen for this client and have encouraged them to set up a CRM and continue to nurture leads via email marketing but did not necessarily want to get involved in that process. However, this client is pressing me on it and I wanted to get some ballpark rates for what to charge if I decide to do it.

This would be a basic setup with minimal to no customization and involve an import for 50-100 contacts (B2B accounts) and the design of an email template and a few automation. I implemented my own CRM over a several months period and didn't track time or anything but I know it's not going to be a small project even for a basic setup.

Does anyone have thoughts on what ballpark rates would be for this sort of activity? I am U.S. based and my agency rate is $175/hr if that helps provide any pricing context.