I went the fiancee > FLR(M)1 > FLR(M)2 > ILR route, and I hated the extra cost, the extra time I had to wait before qualifying for ILR, and the fact that I had to immediately apply for my second visa in my honeymoon period. We got married on June 4th, and I was applying for a visa to beg to be allowed to stay in the country with my new husband the very next day. Very stressful. Not so much magical.
I get what you're hoping for. I'm just wondering if you couldn't just go "file some paperwork at the courthouse" as part of your first application, instead of thinking of it as getting married. Then you can plan your magical UK ceremony and have a honeymoon period that you can enjoy without having to worry about whether you have enough correspondence in both names, and payslips and bank statements, and, and...
Anyway. I had real barriers to doing the US courthouse thing, so if that's more than just a personal preference for you, I get it. But if you have a choice, I strongly urge you to do yourself a favour. Because a magical UK wedfing followed immediately by a visa application won't be the honeymoon you're hoping for.
Meanwhile, welcome to the forum! I promise I'm not as curt as this post sounds!