Any extended axles shafts that fit your cups. Also you might want to take note that the front shock is in the stock lower mounting location like the stock arms. I see the other ones have it up in the center and that well make your car higher in the front by 10 mm or so.
Yes it will work with with TT686 and any extended aftermarket dog bones out there. However we cannot guarantee that fitment will be perfect since we have no control over other manufacturer's tolerances.
We will offer our extended ones made specifically for these arms. Dogbones and Turnbuckles can be purchased separately as well.