im doing this next week actually. Im using a Chief Thinstall as well but using snaps universal soundbar mount [Link: snapav.com]

i get everything towards the end of the week and plan on playing around with it but i suspect with a little bit of hardware from HD it should go smoothly. I am also using the playbars mount as well to "marry" the two together. Shouldnt be too hard to do, but then again thats why we put the cus in custom :)