Ok. I should be a pro in this category.
First of all, I had two pairs of Fuller Fillies breeches in brown and blue plaid, and they were by far the best breeches I have ever ridden when I was in that size range. LOVED the breeches. WORTH putting up with snarky customer service for (although I never ordered directly from them, I ordered through a distributor in the states).
Secondly, the Tuff Rider boots are terrible. They are way too short, to the point that they look very unprofessional/tacky. In addition, the quality was horrible. They do not (from what I remember) have an elastic gullet either which won't help the situation. I returned those boots as soon as I got them and so thrilled I did. For boots that WORK for a bigger calf size, and that last...Mountain Horse 100%. I bought a pair of there dress boots a few years ago and they are FANTASTIC. They still look wonderful, they fit perfectly, the elastic gullet is amazing, and they have a nice and tall spanish cut (really, they are just a regular height but after my Tuff Rider experience I think this is worth mentioning).
Any questions, just ask.