Is it worth it to go back 20 hours to get certain guns in quests which I failed and a glitchy bobblhead. I would be going back for rare weapons and the luck bobblhead which glitches out of the game, however I have all power armor and locations discovered as well as all power armor paints and about 75% of the unique weapons like the overseers guardian. I'm on Ps4 so no console commands. Yes or no?

Personally, I would not bother. The game is easy enough on survivor (well... at least for me) that I don't really need to use legendary weapons. The exception are two legendary Wounding rifles I gave to two of my companions. I am using neither one of those companions at the moment.

Yeah not really, unless it's a legendary that got sold etc...Maybe...If you're on PC and modding you can pretty much create anything to want.

ya, if you are on a PC, you can use console to get your items. i had to for tesla mag #7 no idea how i glitched it out, but i did.

player.additem

ex for tesla mag....

player.additem 00092a7e

naah !..just carry on, at some point it becomes a loop, you will get those Leg. guns shown up again.