Aron, yeah its a bummer. I notice a few months back Sprue Bros. had a mess of the F-4B kit. Wanting one myself for this build I recently dropped them a line only to find out it's now OOP.
Fear not my friend, if you can grab the H-gawa F-4C/D from Squadron, it can easily be made into an early B. I have some spare ecm humps if you want to make it an M.The only drawback with this kit is the raised lines.
I will update the list today.
Leon has a cool badge he put together for us. I asked him to post it so all can take a look and give it thier vote.
Ray