Elerian are you taking lone wolf on both your main characters?

of so then that will make it very hard for you to get crafting and blacksmithing to 5

however if you choose to have 1 henchmen you can change them in the hall of heroes as you wish.

So you could have 1 for crafting 1 for blacksmithing 1 for bartering or whatever you wanted. Then you just need to go get them when you want them.

btw if you didnt know you hire heroes in the hall of heroes and that is where they will stand.

Yes tenebrium weapons does not get a bonus from 1 or 2-handed specialty. But you cannot make staffs out of tenebrium.