I'm in the same boat -- I'm level 37 but my quests are only up to level 28/29 (I'm building Skinner House and Fat Tony's Compound at the moment). And my SF is uglier than I would like as it's a struggle to get both buildings and land expansions, so I'm usually just cramming new buildings wherever they will fit.
Still, I figure I'm progressing through it faster than it's released, so at some point I'll catch up and have leisure to rearrange things more to my liking, and lament the lack of new content. :)
(It is a bit of a pain to keep trying to progress levels during the event though -- the past few days have seen lots of quests involving Milhouse for example, which means I lose a T&Ter for a while, and I don't have that many to begin with.)
But it's also nice sometimes to be able to build a just-unlocked high level decoration "ahead" of everything else.
