So you bought them this way, right?
Nope, all NOS. I managed to find a super box set called outpost Pythos IV, It has the full deathworld set, the cargo containers set and a bastion. Found it on ebay going cheap in Europe and ebay had a site wide sale.
The webway gate was a planned purchase from the LGS.
Here is a quick update.
On a side note, if you are looking for some cheap ready made terrain, I found this last night at the pet store, suuper cheap compared to the prices of stuff down here. Plastic, prepainted, LOS blocking, a bit narrow, but just works. Turns out, the fish section also sell rocks of various sizes that would totally work for other terrain pieces, so if you didn't want to scratch build, its looking like a solid option. Ornament Rock Formation Medium 20x8.5x16.5cm