I thought about the side lever safety, but the major drawback is it clutters the sides of the action IMHO, and actualy the last of the Gibbs had tang safeties.
It would be possible, but I am not a big fan of them myself.

I did get the barrel tunred down to fit into the action, and just need to finish the chamber and extractor cut before installing it. Not sure if I want to scope this one or go with open sights. Scopes kill the classic look of these retro style rifles. My eyes are thankfully still good, and I do enjoy shooting with open sights. Maybe extend the tang and mount a folding peep sight.......hmmmm