Cool, that's great news re BFD2, did you get the upgrade price ?
BFD2 should have 10 kits and I think Eco has three. The same kits that you have in Eco you will also have in BFD2 but in BFD2 they will be 24bit with the extra Amb3 (far room) channel and I think more velocity layers too so it's not worth adding you BFD Eco data paths in BFD2. You can however add your BFD2 data paths to BFD Eco but of course the BFD2 kits will be missing the Amb3 channel and extra velocity layers.
I don't know about the Nick mason kits but what other kits do you think are missing ?
What are your data paths ? The way I laid mine out (and I think it's the best way) is I created a folder called FXpansion on a dedicated drive for samples. In The fxpansion folder is a folder called, "BFD2" into which I installed all the audio/data for BFD2.
I also have BFD Eco inside the "FXpansion folder that has all the audio/data within.
Then I have created separate folders for all my expansion kits within the fxpansion folder so now I have 18 folders for all my expansion kits.
It does get a little complicated especially as some of the installers will also install the kits in the same folder as the audio/data.
This should be ok as long as BFD2's data paths are set up correctly but it's not where they should go.
They really should live in, "C:\Program Files (x86)\FXpansion\BFD2\System\Kits" If you search for them and they're in other locations I would move them to that location. Any time you move files you need to remember to either, "scan for new files" or better still, "trash & Rebuild databases" which is more thorough.
Steve