The last D skin I submitted Skuzzy said there would be a 12-24mo wait iirc, and a 12-18 mo wait for the B Model. But they were still accepting them.
Majors, I'm currently working on a B Pony skin, but if you can find good quality pictures, and squadron info, I'd be more that happen to work on and RAF bird for you. Also if there is a link to the website were you located the picture from, that would be helpful. If you want to PM me the info, I'll start after this one.