Yes I guess they should be about the same size. I need a 468 x 60 banner which can just be a resized header. I am thinking the header can just be centered in the middle of the grey area maby leaving a few inches on either side. So probably slightly bigger than a 468 x 60 banner.
I don't have any graphics or logos that can be used. I am not good with coming up with a logo design but maby you can put something in the header that coincides with the name like maby the letter M and E intertwined or something like that. If you have any other questions please ask!