Dead Money bug fix?

[not enough nerfs dan]

I've been playing Dead Money for the past couple days (blind 1st playthrough), and I got to the part where you're supposed to take your three companions to the different parts of the villa to open the Sierra Madre. I did God/Dog's quest and then went exploring on my own for a bit and ended up finding the belltower on my own, which resulted in it starting the "Trigger the Gala Event" quest early and my other two companions (the ghoul and the mute) disappearing from the fountain when I backtracked to do the next quest. Eventually, I looked up the quest on the wiki and:
If you visit the bell tower before you have completed the three quests leading up to this one, when you leave you will automatically trigger it. This trigger is not complete, however, as no enemies are added, no fireworks displayed and the door to the casino may stay locked, or it may be open with all your companions (including ones whose quests you haven't done) already in the casino.

The casino is unlocked and entering it shows all three companions inside, and it continues the story and completes the quest as normal (I saved before entering to test it.) However, the other two companions' quests are now going to be stuck permanently incomplete in my quest log, I lose out on a chunk of the story, and I don't know if this is going to affect choices I made (such as God/Dog being in the casino even though I technically never came back for him.)

Is there any way to fix this? I'm the kind of player that likes to complete every quest he receives so the quest log is annoying me, not to mention this sequence skip has been really immersion breaking and is kind of ruining the DLC altogether. I'm 30 hours into this playthrough too so obviously I don't want to start fresh on a new character either.