I am wanting to convert the low beam headlamps in my 82 323I dual h/lamp system to hi/lo beams but all of the h4 units I have seen ( bosch,hella etc ) have the park lamp holder outside the main lamp and they will not fit into the existing metal buckets without extensive modifications. Has anyone come across a hi/lo with the park lamp inside the h/lamp ?? My 323 is australian spec which I belive is similar to euro but without a cat and RHD.