Herters were the Lee's of the 1960
not fancy, just well built, they did their money in mail order rifles actually, when the GCA took effect, it basically put them under
That said, the newer presses with more advanced ergos etc. are much more mechanically advantaged than many of these older presses, that said nothing wrong with it.
NOW that said, the priming arm is pretty much universal (within limits) see if the RCBS jr or what ever the cheap ram holder press is, the one where you basically change out the entire ram to change holders
Um, that said, it might be the shell holders as I know there is a universal ram that takes standard holders, and there are other ones that are larger, like an inch tall?
I happen to have a couple of those rams and as far as I can tell it's pretty standard sized mec, its seems to be the same for the RCBS, Pacific and herters and lee.