I'd recommend getting the company who are doing the machining to supply the studs too.

the original ford bolts are now I believe unobtainable and those advertised are not the correct bolt type (though physically similar) and don't have the correct stretch functionality. I've used both original stretch bolts and the non-stretchy type without problems on the 4 end holes. those supplied by anembo are non-stretch bolt which have been waisted to introduce the correct stretch functionality.