I'm not sure if you mean to use a Dolomite repair panel on a Toledo or visa versa, but the swage lines differ between Toledo and Dolomite rear wings. Using a (now rare) Dolomite repair panel on a Toledo would end up looking rather odd, and cutting up a Toledo wing to fit on a Dolomite would also look wrong.
It's probably better to use the club wheel arch repair panels for the appropriate model, than modify an incorrect panel.
As an example I placed one of my (non club) Dolomite rear wheel arch repair panels against my Toledo as shown below, it looks wrong in my opinion.
