Great project . Lots of clever thought gone into that.
Looks overly complicated to do economically .
I find the drop lock latch works great for me , also , I cut the rubber sleeve that covers the chain into 2 pieces , so the chain hangs vertical , the sleeve still protects the paint and the chain still holds the tailgate level when lowered.
$7 latch
http://www.trailerpartsnz.com/produ...p-1426?osCsid=ibggtee82cjc729sbl6ve2l5t0http://www.stovebolt.com/gallery/miller_dusty.htm