Higher Animtion Offset on Attach?

[Mhyja Questi]

Hi I'm basically creating an "attachable vehicle" (instead of the conventional "Sit on vehicle") which needs to be high above the ground at approximately 17 m.   I use an animate/pose on attach script so that it will have me levitate. I used the Qavimator to use the Z offset and the highest it will take my AV is 4.5 m by default.  5.7 m at best if I tweak the BVH file.

 

I was wondering if there were methods, scripts, or anything that would help me get off the ground 17 m or above?