Ran across the CAD drawing for the AST 4150 (front right) strut. For the sake of building our database of dimensions, some reverse engineering was done. This data is provided for non-commercial use. If you try to rip off AST (one of the premier suspension manufacturers), expect their lawyers to sue you, the 86 community to shun your products, and numerous internet photographs of your product being teabagged in public places. Save us (and our giblets) the trouble, and just don't do it.
Distance between strut bolts is 60.5 mm --> 2.4"
Thickness of lower flange is 25.4 mm --> 1"
Distance from strut center to lower bolt is 60.7 mm --> 2.4"
Length from lower bolt to upper mount top is 392 mm --> 15.4"
Upper thread is a M12x1.25-25, with 5 mm of thread relief
Diameter of damper rod is 22 mm
Diameter of spring perch is 60 mm
Length of spring available is 181 mm --> 7.1"
Distance from lower bolt to sway bar mount is 115 mm --> 4.5"
Distance from strut center to sway bar mount is 50 mm --> 2"
Diameter of sway bar mount is 10.2 mm --> 0.4"
Edit: Main post updated with only the relevant parameters!