Yakima Bed Rack And RetraxPro

Im going to be pulling the trigger on the Yakima HD adjustable rack and already have the Retraxpro on board. Question is, do I need the Adapter to fit the rack on my ReTrax Tslots?

 

From the research Ive done so far(I'm going with the same setup) You need the "Tonneau Kit 1" from yakima(pn 8001155, this one is just an adapter plate kit, youll still need the upright bars and hd crossbars) or the Overhaul HD Tonneau kit(pn 8001170, this one will come with the upright bars and the tonneau kit, you'll still need a set of the HD Bars to mount to it.

Unfortunately right now the Overhaul bars and the tonneau kit both seem to be in short supply and Yakima is saying 60 days before they get anymore in.