Thread: priming on an old Hornady press

Hi guys. Back bugging you with more questions about a first press...

I've been given the option to buy an old cast-iron Hornady press. It looks like the photo below, the guy doesn't know what model it is but it has "250" on it. It's an oldie, but comes with good reviews from a guy who was borrowing it. Anyway, it doesn't have a primer arm. Does anyone know if & where I could get a new one for it?

I know a lot of people prefer hand-primers, but I don't have one and a couple of very experienced reloaders have advised me it's better to prime on the press. Either way, it's an extra cost that I need to factor into my decision, and I may be better to wait until I can pick up a press that comes with a primer arm.