Honestly, just installing thunderstore and getting Valheim Plus would be less effort than trying to fiddle around with the console commands. I never used the mod but i'm pretty certain it does allow you to tweak things that you mention with a good amount of control. And i also have never used the console, but i would imagine it being limited compared to your other option, though i wouldn't say mods are messy either, it of course depends on which ones you get.

But if you are exclusively looking for console commands to suit your needs then looking on the wiki should help; https://valheim.fandom.com/wiki/Console_Commands , otherwise that's all i have.