Yeah.... you kinda gather some of them in groups but I rated this the second most annoying quest
and i've done them all so far. I think you pay for 60 of them and then there are a lot of other random rums...like Voodoo rum, skellie rum, 25 year old rum...etc etc... so yeah you do fetch a lot of rum it might actually add up to 99 but I never kept track
But there is definitely a lot of rum fetching. You can work and wait until you're level 23 and then you'll get the teleport for it
Or you can just keep barreling through it. I barreled through it and finished the quest before i ever got the teleport for it