Has anyone here given consideration to using 80/20 extruded aluminum for constructing the cabin or for some aspects of the trailer (cross-members maybe).
This is an example of what I'm talking about:
http://www.amazon.com/80-20-1010-T-SLOTTED-EXTRUSION/dp/B001F0K4KA/ref=pd_sbs_indust_2
This stuff is very strong and could reduce the overall weight considerably.
Note: I don't work for them.
~John