Easy does it Kurgan, you'll be churning out stuff that'll make mine look lke Bantha poodoo before the week is through!
Foam core will enablew you to add so many more elements, doors, passageways, your imagination can run wild.
I'll post the rest of my wall textures at the end of the week, give you more to work with.
All the best,
Jules.
Oh, love the customs as well BTW.