Fresh Ham, Brine Temps, and Food Safety

Merry Christmas fellow Eggers!

The last few years I've heated up a pre-cooked spiral ham in the egg for Christmas, but this year I decided to try to smoke a fresh half-ham. I picked up the meat at an awesome local butcher shop 3 days ago, threw it into a brine solution that included a heavy dose of salt and a bit of whiskey (with sugar, aromatics, etc.), and put the bucket into the mini-fridge in my garage. The coldest that fridge can go is 45 degrees, so I've been dumping a bunch of ice into the bucket every evening to try to keep the brine at or below the recommended 41-degree mark.

Today is the day of the smoke, but when I went to check the brine this morning, I noticed that all the ice had melted (which wasn't the case on day one). I grabbed the thermometer and found that the temp of the ham is currently 43 degrees, so just slightly into the "danger zone". I'm nervous about serving it to the company today, and I'm debating running out to grab another pre-cooked spiral to serve instead.

I realize that many bacteria can't survive at 43 and those that can survive would multiply very slowly, but I'm nervous about Staphylococcus Aureus (given that it's ham) and protein toxins that could survive the cook. On the other hand, an extremely cold bucket of water loaded with salt and booze is a pretty hostile environment for bacteria to survive. I've read every range of opinions on this, but I'm looking for more input: am I being paranoid, or should I dump the pig and grab another one (which would make me extremely sad!). Thanks!