Cool idea. It's going to be loads of work but it's doable.

Here are some things that might work for you:

http://www.hlj.com/product/BRNCB35100/Mil

http://www.hlj.com/product/TRP01008/Mil

http://www.hlj.com/product/TRP00211/Mil

The first 2 look more spacey then the last one.