MGC Luger part request

I have recently acquired a MGC Navy Luger and the "Firing Bar" and associated spring are missing. Judging by previous posts on the forum, this part is absent or prone to damage. If anyone has a spare, please drop me a message. In the interim, can any owners provide me with dimensions of the part and spring. I feel that making a new one should be fairly straightforward if I have the dimensions. Thanks to any and all members.