Sota Sapphire?

I recently purchased an older (late 80's-ish) Sota Sapphire. I've read lots of great things about it but am wondering about cartridge recommendations? The table has not arrived yet, but the seller listed it in near mind condition, and it comes with a Sumiko Premier MMT tonearm and an Audio Technica OC9. He did state that the cartridge will need replacing. I ordered a Denon 103 just to have a cart to stick on and listen to while I figure out which one will really shine on this table.

I am tossing around the idea of sending off the AT OC9 for a retip. Is this worth it? Any recommendations for this particular arm/table combo? Thanks!