Eunny vest dilemma

Over the weekend, I made decent progress on my Eunny vest, leaving myself with only a few rounds to finish before my class on Saturday. Then, I realized that I had done two too many decreases, leaving myself with 8 too few stitches. So, I tried it on to see if it was too small, which it really wasn't. I also blocked it to get an accurate measurement and have taken another look at my gauge. It appears that my gauge has loosened up considerably, although it's hard to tell how much because I can't get a truly accurate measurement on the portion right up near the needles. My row gauge has changed drastically, from 6 rows per inch to 5, so the upper portion of the sweater has to be recalculated. Fortuntely, it hasn't affected the length yet. So, here's my dilemma. Do I rip out? Or do I use it as a strategy to deal with the fact that my gauge is looser? With the 8 stitches omitted, I'm basically making the size I'd started out making - a 40" bust. I could just do the normal number of increases from this point. My conern is that my gauge will be inconsistent and it will turn out too small. However, by ripping back, I'm putting myself in a serious time crunch because I have too much school work to do. I don't know if I can finish what I need to finish if I rip back. I'm really not sure what to do.

Also, here's my progress on Arisaig.