So... I can submit? And this will be for 867, right? I hope the information is correct.
About 867 version - first I have to contact with Dan, as it's still he in charge of all this mod, I'm only the assistant
But my thoughts were to rather export all current characters submitted. It's not much work, as only need to change dates. If there's going to be totally separated version, I'll surely inform.
For now, county of York isn't vacant. So you might choose any other county until then. Good advice - if you want to stay within (vanilla) duchy of York, there's still free space in Leicester. I can also recommend Durham as coastal province.