Don't have a pic but Ill take one tomorrow and post it.
I took 2 copper plates and insulated the positive with some 0.2mm plastic sheet and soldered a 2mm brass nut to it. The negative I just soldered the spring to it.
Beautiful work Bada, wish i had access to the tools and machinery to do something myself, just have to plod on with fat fingers and a hammer and chisel i guess