Not that I can tell.
A rail cipher typically grids out a message in three rows by going diagonally up and down. Since K1 has 63 letters, it makes a nice 3×21 grid to attempt finding a rail message. Since I’m looking for some message, I figured it would probably be the keyword for K2, Abscissa, which would provide a nice test of the concept in the absence of a rational plaintext message making itself apparent.
You can position the message text left to right,
or up and down.
While I don’t see a hidden message, I start to wonder if we can put it in a different grid and get the word “answer”. This is just because of the close proximity of “an, s, and we” towards the beginning of the up/down grid. Please note that this is merely idle speculation.