Ok, well, that's not too awfully big - I was thinking "giant" to do 4x5 but maybe this will work. Thanks to all and a special thanks to Bob for working out all the dimensions for me! That gives me an idea of what I'm up against to find room for it.
I'll let you all know how I make out here...I hear the 4x5 Land sweetly calling my name...one of these days!