11'x5'; small, upper window at one end (5' end) with toilet under it, then vanity, then shower (this is all along the 11'3" wall. Door enters across from toilet. How much room do we need to allow for the toilet before installing the vanity on the same wall? Am considering a corner shower - 3' x 3' - with narrow cabinet to take up the 5'. What's the space needed between vanity and shower stall? Thank you.