My suggestion would be to place it either all in your character profile, or the plotting page with an appropriate subject title; or both! And then create a link for others to access it.
For example: If you place all the information in the characters's profile, post a plotting thread on the plotting board with an advertisement for it, your rules on using the race (if any apply) and then a link to the details.
Or do vice versa in your character's profile, just add a link to said plotting page where more information can be found :)
Hope that helps!