Superb, can't wait! Were your wooden sections (like the floor panels) cut by laser or by hand? Magnetic terrain is never something i've even thought about, I'm itching to steal your concept and have a bash myself.
The wood sections are made from MDF. I made a template and then used an edge trimming router to duplicate the pattern. Next I used a table saw to cut the pieces apart. The table saw was not the best tool, I plan to purchase a band saw in the future, will be much safer.