Now here's a kick bike design I like:

http://www.effendibikes.de/11401.html

The flat deck design (ie. no tubes) means a nice low deck. You might even be
able to add a removable wear plate.

Looks like 2 position drop outs for the rear wheel as well. And the joint design
where the down tube meets the deck looks "hell for stout".

Wish I knew how to read the language on the web site.