Jagoroth Spaceship - getting started

Looking at my "Doctor Who Technical Manual" and the "BBC VFX" books, its clear that the supplied two rings when put togther are just far too deep making the ship far too elongated. So i've ditched one for a new ring made from Plasticard.
You can also see a small strip of black striping in the second photos - that's because i figure its crucial to get the three upper parts of the legs in excatly the same place if i'm to have a hope of getting the legs to stand up evenly.
So i've put them there and i'll be offering the three legs up to each and then mark off where they should go.