I thought about converting the Alphasim F-4s but it does not make sense for me because there are good naval F-4's now for FSX (Milviz F-4J/S and very soon SimWorks Studios F-4B/N). The ones that might be worth doing are the newer pack 3 RF-4/RAF Spey engined models because these do not exist for FSX. You might consider converting the exterior only, then marry it with a good native FSX interior. I can highly recommend the Milviz F-4 - I use the J/S interior with the IRIS RAF Phantom exterior, works like a charm.
The F-4k was my intentional target but it seems my rig is much further gone that I originally thought so it's going to be a while if ever before I can look into it. As for the Milviz F-4j/S it looks amazing yes but truth is I cannot justify that kind of cash for an aircraft or the Simworks one so I must stick with Whatever freeware options there are available. But all this is still great news I can't wait to see what gems get bought a cross from the fs9 world now.