Honestly? I don't think it is possible to do what you are trying to do. Epcot for lunch. Afternoon break. Epcot for dinner. And still do the Safari, Everest, TSM, Test Track, Soarin' and Rock-n-Roller Coaster in the same day without much of a wait? I'm not feeling it. Any idea if there will be late hours or evening EMHs at any of these parks? Or maybe morning EMHs?
This may not mesh with your goals, but here is what I would do:
Get to DHS at Rope Drop. Go straight to TSM upon opening. When done, go straight to RnR. If the SB wait is tolerble, ride together. Otherwise, use the single rider line. If there is really nothing else that you want to do there, then take the bus to AK. You should be on the bus by 10:00 or so.
Go to AK. Go straight to the Safari. Don't know when you are going, but I picked 10/15 as a random date and Touring Plans predicts a 25 minute wait at 10:50 for the Safari. Very doable. Then head over to Everest. Predicted wait time there is around 20-25 minutes. When done, take the bus to Epcot for lunch.
At Epcot, use your FP+ for Test Track. Enjoy touring World Showcase during F&W as your afternoon break. Force yourself not to do anything strenuous and truly treat it as a break. Go to Gusto and have a glass (or two) of wine. Sit. Relax. Then, when "breaktime" is over, get back on the horse and do some more stuff. (You still have 2 more FP+ to use up). Then have dinner at MP. You might even be able to squeeze in a ride on Soarin' after dinner with about a half hour wait. If you really feel that you must leave Epcot and have an afternoon break, then that's fine. But it seems like more trouble than its worth given what you are hoping to accomplish in a single day.
I appreciate your concern, but I didn't think we were trying to accomplish much. We have been to WDW many times. We know what we like, and we know what can be accomplished. On my 40th birthday, we did AK (Safari, EE, ITtbaB, PW), DHS (Star Tours, GMR), Epcot (Test Track, WS), afternoon break, back to DHS (TSM), and MK (too many to mention). We had lots of short waits, and that was in the middle of June with the crowd calendar showing 6-8 for the parks. October is much slower. Rides are not a priority. We don't drink alcohol, so no wine for us. And we will NEVER take a "break" from the park in the park. We enjoy our resort time too much. We are
DVC and have learned to enjoy relaxing at the resorts. The only thing I'm having a hard time figuring out right now is how FP+ affects our plans since we haven't been there since it began. We usually go into the parks only 1-2 days each trip and go to at least 3 parks when we do. FP+ doesn't seem to work for those who do 3 parks in a day.
I think this will be our plan:
AK--ride Safari and maybe EE, stroll around the trails and take in the awesome atmosphere
Epcot--ride Test Track (using FP+) and enjoy food at the Food and Wine kiosks for lunch
Afternoon Break at the Resort
Back to Epcot for dinner, a stroll around World Showcase, and IllumiNations
I can ride Toy Story Mania and Rock 'n Roller Coaster next time when my kids are with me. That will eliminate having to park at DHS and walk in to only ride 1-2 rides. That's probably not worth it.