Someone was asking about these sets from Meteor Productions a few weeks ago and I can not remember who it was so I'll just post this in general and hopefully whoever you are, you'll see this.
Just got the status of the 1/48 B-17F nose conversions -- they should all be hitting the market by late May or early June -- all of them at the same time. I know there was some debate that they simply were not going to make them but that is not true, just need a little more patience.