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)?

When I bought mine new it shipped with the 600 tonearm. Cart was optional.
I have a fully blown/modded P25. It comes stock with a Rega RB600 arm and no cartridge.

If you can post a picture of the arm somewhere, I'm sure someone will be able to tell you what it is.

Without knowing all of the components of the table, It's kinda hard to put a value on it.
P25s came with an RB600 and no cartridge, unless you ordered a table with a cartridge.

P25's were not sold without tonearms, so someone took off the original RB600 and switched it for the Clearaudio. I don't know if it's a proper fitment as I don't know if a Cleearaudio arm uses the same mounting point as the Rega arm.

The Exact 2 cartridge is the top of the Rega moving magnet food chain. I used to have an original Eaxact and thought it was a very livvely and dynamic cartridge. I had it mounted on an RB600, but eventually sold it when I sold the RB600 as well.
RB600 was the stock tonearm that came with the P25.