All right, here's Wild so far:
Wild -- 1, 3, 6, 7, 8, 9, 11, 17, 18, 19, 20
Of these, 18 was by far the most challenging. Also, I was only able to get 9 via the nuke glitch, and 11 requires some steel abuse.
Most of the others require a lot of work to prepare the route, making a 1-minute solution unlikely. Of these, 3 looks like the most likely candidate, but I haven't had any luck due to builders being in short supply.
Edit: Added 3 & 19