nothing has been released yet, but original readmes/credits will be included with everything. And mackie posted a thread at BCU (porbably more than once) and bumped it several times trying to get his stuff converted, so yes, he wants them in BC.
And to answer your questions, no modding has been done yet, this is just stage one, getting everything to nif. I did 14 of them yesterday. I just did the oberth variant and the new miranda dreadnought a few minutes ago. And the magellean has serious problems. I just noticed that not only is the rear end screwed and the tos dishes, but some of the lights from the sidewalls as pictured on mackies site are also missing. So some of these I will need to reconvert. Some simply need minor texture alterations or lightmap updates. And I know a guy who can do registries and another who does lightmaps as well, so That wont be an issue, as there is a couple with ncc1701 on them still.