CLIP STUDIO PAINT EX Ver. 1 & POSER 12 Bundle for $49.
EX is the multi-page version, but this is a very early v1 version (now at 4.x, I think?) that I wouldn’t wish on anybody. Know that the official Poser to Clip Studio export script stopped working in Poser 12, due to the Python upgrade. Also note that Graphixly have Poser 12 for $29 separately, and then you can spend the rest on the vastly easier comics production software called Comic Life.