Follow up: I ditched Spoodles reservation and switched us to a much earlier dinner at Brown Derby in MGM. Plan is to see the Osborne Lights and then call it a night!
This will be earlier/easier and less worry about the food options for that night.
I made our Biergarten ADR for a half hour earlier and I have accepted the fact that we may not go to Kona that night (I tried repeatidly, but couldn't get a decent ADR that night anywhere that worked for us!). So I left the too early dinner, but we aren't married to the reservation. If it works, great, if not...we'll snack and CS for supper.
We will skip the 2nd Whispering Canyon (per Linda's suggestion) and we'll pick up burgers at Lottwana Lodge in the water park instead (and that is the day we'll eat at Brown Derby later for supper, so we'll be set...we won't miss that WC ADR).
I am still not sure that we'll stay in MK area all day on day five. We'll see. I am a bit tempted to drop our morning ADR at Tony's, but then I think it will be fun so I think we'll keep it! We'll still want to leave the park and go chill somewhere since we'll be there that night, but it looks like we'll be there long enough to do a few things like the Laugh Floor...the girls really want to see that!
Thanks for the tips and ideas!