Rega Planar P25 question

Hi, I have a Rega Planar P25 with an Exact 2 cartridge and a Clearaudio tonearm of some sort.

I'm not sure what is stock on this turntable and what isn't. Did these ship with Clearaduio tonearms or has this unit been modified? Is there any way for me to tell which tonearm I have exactly? I don't see any numbers on it and it doesn't match anything on the Clearaudio web site.

Is the Exact 2 cartridge standard or an upgrade?

If these are upgrades, can anyone help me figure out a value on this unit (rough idea)?

Thanks!