Ok, most of the relevant design posts are on the first thread, though most of it is idea shooting, here is a selection of the most relevant idea-posts:
One
Two
Three
Four (probably not useful at present time, just ignore it for now
Five
Six
Seven Note: Autohummer wanted to make the adventure extension aspect of the mod closer to plot/setting of Homeworld, something which I didn't want, but for now we only want a(n at least partially) functioning mothership so no need to worry about that yet.
Eight the much more recent dockscreen map, this is primarily what needs to be worked on ATM.
It would be great to get a relatively simple "Wrecks / Items --> RU --> Produced Hulls & items --> loadouts --> spawned wingmen" Pipeline working.
I attached a basic mockup of what parts of the playership .xml might look like (it's a modified CSC from PSD)