Cloudflare setup to RDP server for 10 users

have a main office with a static IP, an RDP server and no website but have extra domain names. Also have less than 10 remote Windows 10 users, that need to access only the RDP server at the main office. Cloudflare sales wasn't very helpful as to which plan or how to get started so we have the free plan. I'm guessing we need to setup Cloudflare THEN (?), Cloudflare for Teams, Cloudflare Access, etc.. Other items to include "Implement Zero Trust access" and WARP are confusing. I'm fairly tech-savvy but want someone to setup the test environment and possibly the production environment.

Deliverables
Working secured setup for RDP