Frozen boost used to have the best pricing on those clamps. At one point I was installing so many headers I was stocking the darn things lol. They are very good clamps at the best pricing.
On the wife blowing a speaker, it was probably from your weather constantly beating down with such heat and no humidity. I don't think there was a speaker in my Regal (Monsoon) that was any good. Even if you replaced all the speakers and nothing else, I bet it sounds better. That could even be a slow upgrade plan, do the speakers first with the ones you'll want. Then down the road (cause winter is coming) you could do the other pieces depending on how far you are going with the system in it.
My plan differed from most others because I knew any system would be better than any that I had previously had. I also considered trunk space to be a premium and aimed to use as little as possible for amp and sub. Hence why I did the upside down amp under back deck and amp in the corner where no audiophile would do it.
An easy upgrade is the alt from I think a Park Ave or Police Impala. Memory is fading as I age, I think it was something like going from a 104amp to a 130amp. My local JY had the alt for some silly price of $10-$20. At the same time I tossed a second heavy gauge wire going from alt to the top of the fuse box. Maybe not ideal, still can feed back to the battery since it's main connection is at the same post.