Oil leak

Well I have been messing around with a little oil leak on the lock out knob of my reba fork for awhile now.  I finally took out the motion control lockout assembly,  and took it all apart.  I need a seal that slides into the red housing  and I cannot find one anywhere.  It seems like you have to buy the whole dampener.  you can buy the lockout knob and  2 o rings, but not the seal I need.  I found and o ring that would fit above the seal and installed it.  The lock out knob turns a little harder, but I can live with that if the oil stops leaking..

                                        

The seal that I need to find