Thanks Keith
your welcome to the design, such as there is,
made from scraps,the bolts are 4mm high tensile
the endplates are 1/16" aluminium and the timber
is a piece of 1" plywood
all happened to be in scrap box, adjustable for independent
up , down lines length, also spacing goes from 4.75" down to 3 1/4"
Does everything my $ 50.00 handles do!!
Happy landings
Vincent