We want you to configure Mikrotik CHR to serve clients over PPTP and PPPoE with built-in radius (user manager) OR (DMA) with different profiles up/down, monthly, weekly expiry.
Another setup of Mikrotik in same Network is working over PPPoE at VLANs 100-115, in these VLANs clients will be served over PPTP (because can not use another PPPoE server at same VLANs)
VLANs from 500-510 will work with PPPoE Server
Multiple ISP Uplinks, load balancing by round robin or static.
Hardening the Mikrotik own security from attacks.
Please contact only if you have extensive knowledge and experience of such scenario to avoid wastage of time.