I think the CTX will be too wide for you. If the waist is already 26.1, then it is even more at the inserts. With size 11 boots, this is unnecessary.
At 205lbs, I think the 157 is the lowest you should go. Even then, the 160 will be more stable for sure. You weigh 30lbs more than I do and I ride the 157. The lowest I would go for myself is the 155.
You seem to be pretty dead set on the 157. I say go for it. I mean it's not going to be super unstable or anything. It'll just be more lively for you than it would be for me. Keep in mind it already feels lively to me.
All I can say is, if I was your weight and boot size, I'd be on the 160 without a doubt as my quiver of one board.
By the way, I just realized the fatty Euro carver is Dice haha. Mistook you for him earlier.