[John Gutmann]

make your own connector if need be, how thick is the lexan if more then like 1/8" put it on a mill and take the edge down
take a piece of the copper clad circuit board and etch a small strip and put it on the edge of the lexan with screws then for the female end make a simple 5 sided boxbut on the side opposite the opening take an end mil and mill out a like edge that is alternating for strips of copper that can be put theour and have a hole drilled in the outside edge so wire can be soldered to it or to a circuit board na dten just bend the copper in side the female end so they act like springs with constant contact

if that doesnt suit you then get something like the power connector for power supplies in computers, i believe they have 20-24 connections i dont remember exactly how many