Here's 3 custom stages, right before a deadline because I'm terrible at doing things ahead of time.
https://miiverse.nintendo.net/posts/AYMHAAACAAADVHlD1FdRKQ
https://miiverse.nintendo.net/posts/AYMHAAACAAADVHlD0_6v3g
https://miiverse.nintendo.net/posts/AYMHAAACAAADVHlD05qfdA
https://miiverse.nintendo.net/posts/AYMHAAACAAADVHlD1FdRKQ
https://miiverse.nintendo.net/posts/AYMHAAACAAADVHlD0_6v3g
https://miiverse.nintendo.net/posts/AYMHAAACAAADVHlD05qfdA
Anyway, I'm pretty sure your stage will be included. It's a good counterpick.