can witch hunters induct imperial gaurd and then use kroot mercanarys as allies?

say a radical inq lord in the damocles gulf was left so he joined the tau then started to learn more about them and the kroot. so one day he and the kroot went oin a magical adventure with his followers going along any way....

so im thinking...
Inq lrd + henchmen
shaper council

head hunter kindred
death cult assasins

storm troopers
storm troopers
infantry platoon
armoured fist squad
kroot mercanary squad

kroot trackers ??

leman russ maybe?

these are my initial ideas it seems legal as inducted gaurd dont count as my one allied so im allowed to use ONE set of kroot things