Work continues. I lightened the main bulkhead, test fit some stringers, and played around with the cargo shelf.
I priced corrugated plastic board and .032 aluminum for the skin: 4X8 sheet of the fluted plastic is $13 and a 4X10 aluminum sheet was $45 (I think). I am leaning toward the aluminum but the fluted board is tempting.
Next: Mount the main Bulkhead.
Photos (ignore the extra long stringer sticking out the front of the bulkhead it will be cut off) with a grocery bag to check if 4 of them will fit in the cargo area per
Craig Vetter Challenge rules 
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