I have the old rain gutter and base for my 29 std coupe and after staightening them the best I could the base and gutter still don't fit together very well. They base aligns with the roof pretty well but the gutter looks like it will be way off. Any tricks to getting this looking good? Do you just mount the base and then hammer on the gutter? It looks like at one time someone drilled holes in the gutter part to get it mounted tighter to the roof. Any suggestions would be much appreciated.