I have a 74-78 911 front end with 20mm sway bar, front struts, hubs and dust shields. It does not have calipers. The spacing appears to be 3 inch for a M vented caliper.
Might be a good upgrade for a 914 project. Let me know. I'm in Southern California and can meet in Orange or Los Angeles Counties. $1200 obo
Pictures to follow soon