Legion bfa shadowlands music

[zonzod 1]

hello, looking for help with adding sound to creature ported from legion bfa or shadowland's. 
i mean to patch 6.x.x there was a soundentire's whih make me quite easly to port the sounds but the stairs start from 7.x.x since there is soundkit with is not usable on wotlk format i tried to add but with no resoults
there is my dbc's pack and the creature is fellord

http://www.mediafire.com/file/7vpyr3rxya4qptk/XXX.7z/file