well ford has a high flow GT/Cobra pump but you need to open them up and de-burr and make sure piston is installed properly (no seriously) or you can purchase one from MMR which has that done to it as well as Cryo hardened pump gears (pump i use) or you can order one from VT with the billet oil pump gears.
will I be able to reuse my head, intake, or valve cover gaskets? I'm assuming no for the heads, but yes for the others?
also, will a cobra oil pump really benefit me even if I don't upgrade to a larger capacity tank? I'm thinking the higher flow might make me starve quicker at the upper rpms
The Cobra and GT have the same oil pan so i don't think you'll starve your pump with the cobra high flow pump. I have been told that if going with an aluminum block its good to upgrade but if sticking with iron then the stock pump is ok.
You will need the head changing kit that includes the head bolt, head gaskets, etc..it doesn't include timing cover gasket which you most likely will have to change. My intake gaskets have been in good shape but it wouldn't hurt to order one since you are kinda in the middle of the ocean if you do need to find one last minute.