Thanks for your comment, Dalo!
Looking at the links you have posted, I have come to two conclusions:
1) We have very different tastes about space stations (and indeed, about what "low tech" means), and
2) You're very likely going to hate the changes I'm doing to the star fortress
I'm very thankful for all the specific and constructive suggestions to improve my WIP models, and for ideas to create new ones. I can only apologize for my lack of skill if some of my models are a sore thumb, or are not even appropriate for a terrestrial facility. Anyway, if you feel inclined to use my shipset, please remember that SR2's manual hull selection (or a little modding) gives you the opportunity to not use any model you extremely dislike -- SR2 is a great game, isn't it?