rescue(or something) a blacksmith that stays in camp and makes new items from those components or improves the existing items
Not sure wich sounds weirder ...
Blacksmith that have perfectly suitable forge to create magical items in middle of nowhere ...
Or Blacksmith that moves his perfectly suitable forge to create magical items in every mini camp.

Nah, hard pass from me. :-/
Type in traveling blacksmith into google should help you with thatl. City folks i guess:)
If you want magical blacksmithing you can always do it on some mushrooms

Joking a side not sure what you think you need to do for magical Blacksmithing...
It's made up not to mention after you unlock the Adamantine forge it could unlock the whole thing. The blacksmith could always go there and do what's needed it could even be a whole quest - chain of quests whatever. That way it could take multiple rests to get it done giving abit more balance to the whole thing IF resting would work in this game anyway and it wouldn't be available off the bat again adding to more balance.
Even if traveling blacksmiths were not a thing and as we can see they are... The fact that all that shit we have in main camp is there, all those tents and what not moves with you with no horses or carts is same thing... and it's still better then doing it on the fly with a menu and duck tap - hot glue gun hehe.