Another thing is I am not sure on how tall a 351 is but I would almost think you might run into a hood clearance problem but I could be wrong.
Good luck with your build and welcome to the site.
351 is 1" taller than 302.. there will be hood cutting involved.
Forget about a 9" swap right now, get the engine/transmission stabbed in, wired, plumbed, and drive it. The rear end is down the road a ways.
If you're going with a t5, use a V6 bellhousing, it will fit with the 11" flywheel of the 351.
If on a budget, and going carb, use the Ford Duraspark II ignition.. they're a good ignition and cheap as hell.
Granny's is about the only game in town to buy the mounts, unless you make them yourself.
Lots of the swap info on this site that is not engine specific will apply to any car..
IMHO, the LS swap is a better fit for these cars. Engine sits in the bay better, better/more options for mounts, headers, etc... and these guys on NoRotors have the swap down to a science. With that being said, I've stuck with the 351, simply because I'm
in to deep too lazy to start over.