Panoramic Pinhole Plans

I recently came into possession of a 5x7 dark slide that has been cut in
half to give to approx. 6x17 exposures on a 5x7 piece of film. I have a
fairly decent 5x7 camera (Kodak 33a) and would like to use the setup to
make some pinhole panoramas. However, once I fashion a pinhole
lensboard, I'm worried that falloff towards the edges will result in a
sort of 'half-dome' effect on the photos that won't look so hot
(especially on the bottom half of the film. So my plan is to make the
pinhole off-center on the lensboard and flip it for each exposure. As I
am very inexperienced at making my own pinhole cameras (even as limited
as this - I use a Zero2000, a Leonardo and a Nikon pinhole body cap), I
feel a need for outside input. This leads me to ask the group for any
comments. Are my falloff fears fraudulent? Anything else I should take
into consideration?

Thanks,
Benno Jones

-- 
See my homepage at http://www.bjonesphoto.com
It's a well-known fact that although the public is fine when taken
individually, when it forms itself into large groups, it tends to act as
though it has one partially consumed Pez tablet for a brain.
- Dave Barry