Now that I've uploaded the full Hardcore Mode modpack, I'm getting around to adding more options. Appreciate your thoughtful suggestions!
Regarding #1, I agree those functions should be peeled apart. I've implemented your suggestion as described.
My concern with free pod drops is that it's a little difficult to control how many cargo pods your materials get sent in. (If you know what you're doing you can include some of the same material in each drop to rate limit, but many players won't know this.) This is a mild problem if you're bringing a boatload of plates and dropping everything else with Ctrl-Click, but is likely to be more severe if you have a specific number of free drops. For now I've added an option for construction robots to ride free.
Good suggestion with #3. This is now included under an optional setting.