This mod looks amazing, I have few questions though before I go all in :)

1) Is it compatible with steam achievements?

2 & 3)
You say the mod is harder than Vanilla and focus around veteran and elite, do you still select difficulty or does it only have 1? I currently been playing through normal on vanilla (which is way to easy) Can i still copy or convert that character to this mod?

4)
I would like to honor the original game but at the same time play a mod which keeps me from getting bored in the long run. This mod is harder yet you have better gear and extras, Is there a fine balance between these or would you say this mod is leaning more or less towards “cheating”? So to speak.

5)
Apart from that I definitely would have to upgrade my gear upon converting my character, Would it be considered best fit to start all over with this mod? or in other words would a converted vanilla character still not be as good as a beginning mod character regardless of what you do?

6)
As this mod is still being polished, would an update later on mess up your current game with this mod?

7)
I see you got a synergies collection mod package. Multiplayer wise (if you know) Should i get the overhaul with or without the extra mods in the collection package or what do people play the most online besides vanilla?

Thanks for your time