You can download him here :) http://www.mediafire.com/download/dc0v28qodx2r482/MMD_Hibiki_Kaoru.rar
I know, the MMD model doesn't look exactly the same as his concept art, but its a concept right? As long as it looks similar. (because I tried to make 3d stuff but i failed so i can only rig stuff hahahhahaha)
Model Credits:
LAT: base (bikini miku), shirt (len) & shoes (sailor miku)
Animasa: pants (swimsuit len)
3DCG: hair
Deviantart account credits
MMDFakewings18: hair (rigging from 3DCG)
Y0K0NI: headphone
Rezo-sempai: eye texture
mayahatsune: belt
pianomanjojo: lat len (rigged the shirt from his model)