All ms8-29 & ms9-29 models works on nanao Toshiba
A68KJU96X (only thing is different is yokes and their adapters with connectors and designed pins for degausing)
Your WTB must be “Toshiba A68KJU96X Tube + MS9-29 Yoke”
and you want also MS9-29 Yoke (this will be ideal scenario for tube to come with right yoke to use on Ms9-29)