While you're doing this, PLEASE consider improving the parts instead of copying an already poorly-designed part.
Many corners were cut back in the day, and not all parts were made carefully or aesthetically pleasing....
NOW is your chance to correct those mistakes.
For example, the hex-post cable holders (although good) still make the post/wiring look messy.
I designed (long ago) a hollow sleeve the full length of the post that hid the wiring all along the post, whether it was 1" or 4" tall and made the game far neater.
(The sleeve was chrome steel for bling, since the hex-posts were already chrome, but the sleeves could equally be coloured plastic to match the game/theme)
Lets make pinball BETTER, instead of putting up with poorly designed parts from the past.
Just my 20c