This looks like a possibility. Maybe use your original mount. Also you can rivet new red targets on your switches. Photo is original switch. http://www.marcospecialties.com/pinball-parts/500-5835-02 or this http://www.pbresource.com/switches/wll-a14691-4.jpg $7.70ea WLL-A14691-4
Red round plastic 1.00ea
http://www.marcospecialties.com/pinball-parts/545-5456-02