For some reason my response has been stuck in moderation for 12 hours (is that typical?), so let's try again. (Also, I realized after the fact that I probably should have put this in the recipes forum - apologies!)
Thank you for the responses! I am glad that people are reporting that they typically don't smell lard in the finished soap. I'll definitely be sure to smell the lard before using it; I got it from Fred Meyers - a big store which should have a high turnover. I plan to use a water bath to melt it to keep oil temperatures as low as possible so as to not make the smell worse. I'm also considering reducing the superfat to 2.5%, to reduce the amount of unsaponifiable lard left over (which may help reduce the liklihood of smell? Maybe?)
I'll be making a small batch - one pound of oils - so if things go badly at least I won't have too much smelly soap to go through.
Looking at my recipe, I realized that I bought 16oz of lard - if I reduce it's proportion to 50% I'll have exactly enough for two batches of soap. I'll make up the difference with shea butter (or mango butter? debating with myself about this), as MrsZ suggested.