I ordered a pair of cycling shorts and when I got them....too small for me.
I've also ordered a new saddle with more cushion but no wider than I'm already riding. I remember back in the 90's when I was riding daily, I had to get a more cushy saddle. It may have the opposite effect of what I'm hoping for but I'm going to give it a try and see what happens.
I'll also look for inexpensive, stiff-soled shoes and try that but I really think my foot pain is linked to my butt pain. I'm keeping weight off my butt and it goes to my feet.