distributor question

Does anyone know where to get the springs for that mech adv to be able to set up a proper curve?

the last time i needed some YL **** i got it from a place that does jet boats. i know a bunch of that stuff is NLA, but it pops up on flea bay from time to time. i DO know that the mr. gasket springs are kinda sorta close but fit crappy.
Her ya go, boys...
[FOR SALE] - Mopar distributor advance springs