Hello,
As latest RutOS versions use OpenWRT 21 with an updated kernel, OpenWRT feeds will likely not have the necessary packages built for 5.10 kernel version.
Instead, I would suggest compiling our SDK with the necessary packages: https://wiki.teltonika-networks.com/view/RUTOS_Software_Development_Kit_(SDK)_Instruction
Some of your listed kernel modules are compiled by default, and some need to be selected in menuconfig.
As for packages, they will need to be added separately or installed from OpenWRT feeds. For compiling third-party packages, please refer to OpenWRT documentation: [OpenWrt Wiki] Creating packages
Keep in mind, that Python is already available in our SDK (but needs to be selected to be compiled into the firmware), and pip can be installed by following these instructions: RUTX09 RUTX_R_00.07.09.1 pylogix - #3 by AndzejJ
Best regards,
Daumantas G.