Setup 4G mobile Proxy Server With linux pc + Dongles and usb hub

Hardware will be used - Linux PC with Lan connected or Raspberry Pi 4 Model B - 2GB with NOOBS OS connected with Lan - Dongles (Huawei E3372) with sim cards - USB HUB (I have seen that Orico 2.0 - 10 port works well) Setup for Proxy Server - Able Support multi dongles - Able connect proxy through HTTP Proxy - IP Address Rotation on Time Interval example: 5 minutes, 10 minutes, 15 minutes, etc - Able Manual change IP address for each dongle - Being simple to use via the command line Tell me if you had done this kind of project.