Wheel studs for 1st gen?

[lateapex911]

I am looking to redo my studs for the season. I'd like to get 12mm 1.5 thread pitch studs that have a section that screws into the threaded hub. They use an allen key to seat them. 2" available threads after that to accommodate spacer and wheel.

Old source dropped them because "1st gen guys don't exist any more".

I found some at Turner, bu at $5.5 or $7 each, it's gets spendy.

Mazdatrix has some at $3/5 EA, but they are a tad short at 2.25 OA. That leaves 1.6" or so available thread, less 10mm for spacers, resulting in only 1.25. Certain wheels eat up all but a few threads of those.

Any ideas?