Maybe you should put that in the first page as part of the flashing instructions
It's not a bad idea...
Just to clarify something though, if I were to update camera or sound drivers using FAR Manager + SEFP, I have to reflash the Main so I will lose all patches and have to reapply, am I correct?
It is correct what you wrote, BUT if you make a rest file for SEFP (*), then you can flash that instead of entire MAIN, and you will not loose any patch.

* - in [SEFP folder]\rest\ folder there is a mkrest.exe(or something like that). With that tool you can make a rest file for SEFP.