Changing out radiator support

I just bought a 65 upper and lower radiator support that i want to put on my 64 dart so as to give me a wider radiator opening. I also need to mod the lower support to as to drop my radiator a touch. Has anyone done a radiator support swap, and how hard is it? Any tips? the one i bought has all the spot welds drilled out, so is it a matter of finding my 64s spot welds, removing the support, and then welding the new one in strait and squire?Thanks