Well I did kind of take some of your advice lol! I moved our KRR FP back an hour, from 4 to 5:20. And we're going to eat a later lunch in Epcot before we refresh at the resort and head to AK

Then we'll try out the offerings at Harambe Market later at night, somewhere between FP's and before the JB show.
Now first of all I want to say that you should definitely book Sanaa for your trip next year if it interests you, we LOVE it! We've eaten there 3x. We've gotten the bread service the last 2 and we all love it, even Ricky who can be on the pickier side. Speaking of picky, you mention dinner at TH which was a very good suggestion! We've done lunch there a couple times and I believe the food at lunch is the same, or close to the same, as dinner. The first time we did it Ricky was pretty young, I believe 5? And I figured he would just eat bread b/c he was still in his mac n cheese, chicken nugget and pizza phase

But he surprised us both by eating a lot! So if TH interests you at all and you're only hesitating b/c of your picky eaters, maybe think about it some more. I actually think there's more there for picky eaters than on the Boma dinner buffet.