it could still be fun to try, i just found a pcb drawing tool (http://www.sunstone.com/pcb-resources/Downloads.aspx) that can import a lot of formats and can tell what the final price would be

only thing needed is a pcb layout and parts list to start from, if sunstone can not find some of the parts then it would just be a matter of finding a part that can be used instead

and i guess that just just changeing ethernet and such would mean that it is a whole new pcb layout and as such no one can claim right for it anymore

the hard part is the software, i guess that everything would have to done from scratch... but maybe some "guru"'s from here could do that?