Marantz SA-10 vs SA-KI Ruby

I tried buying the SA-KI Ruby for my second system (single-ended) but in my country they are only sold as pair with PM-KI Ruby.  My regular hi-fi shop suggested I should get another SA-10 since the actual retail price is a lot lower than the list price.  The Ruby being limited edition, need to pay at list price or even higher.

@elizabeth @anwar ICIC

The SA-KI ruby is now available for purchase as an individual component. 

Could you tell me, what is the retail price of the SA-10?

And back to my original question, they seem to have the same transport and same DAC and same filtering tech - are they the same player?

My bad. Yes the Ruby SA-KI is available. It is most likely the same item as the limited edition Pearl was in the UK.What is the difference? $3999 to $6,999? $3,000. Easy.   
The Sa-10 has some better part from looking at Googled images of the innards. The back is the same with the KI only lacking the balanced outputs. Inside the 10 hs shielding the KI lacks. Plus the main board on the right is very different. The 10 has big heatsinks in the middle, lacking on the KI.
(the Sony SCD1 vs the SCD777 when introduced was sort of the same. they really were very similar, the price. $5K vs $3,5K, then $2.5K for the 777 as they sold off the remainders.

But does it use the same processor (DAC)?

twoleftears sez: " But does it use the same processor (DAC)? "Ahhh the million dollar question!            
Need some reviewer who has both, or Marantz advert to answer.Advertisements say the KI uses the MMM  decoding. Which is the same sort as in the SA-10. Whether it is IDENTICAL???  
The remote sure looks the same. The case is nearly identical. Only the lack of balanced out on the KI Ruby.