As noted, the WDW TS restaurants really aren't set up to handle to-go orders. However, it sounds as if you are making your reservations right at the 180 day mark. You should be able to get a LTT lunch reservation without too much trouble. If you can't, use the touringplans.com reservation finder. I've been trying to get an ADR at Beaches and Cream for September. My DD told me she wanted to eat there a couple months after our ADRs were set so I was trying to find an ADR that would work without having to move a bunch of other ADRs around. I set up a request with the reservation finder and was notified twice when ADRs were available. The first one was at a less preferred time so I booked it but reset the reservation finder to find a better time. Sure enough, about a week later, I got a notice and was able to snag an ADR that worked better for us.