Add an external DAC. Make my Oppo UDP-205 a true top player

Did I say discrete jpeg?  It's been a long day:  Discrete JFET.

i have a Oppo 105 and would like to add a external DAC that would rival the SQ of a 205 without the huge price upgrade of a used 205. this is 2020 4 years after the introduction of the 205. for a grand their must be something? any 205 owners find anything?  btw, the LKS is no longer available.  

@jag

You write: "btw, the LKS is no longer available"  

But I see it is available from Amazon, apos.audio, shenzhenaudio and various ebay sellers.  How did you come to this conclusion.  And why?

Also the LKS mini dac (similar but just one DAC chip) for under $1K.

I have a 203 and am using it as an endpoint with Roon. The 203 is Roon Ready but my problem is that the 203 will not unfold Tidal MQA files and I need a DAC that will do that so I can enjoy the full benefit of Tidal.

I've considered purchasing a streamer/DAC but I am wondering if I can simply purchase a Roon Ready external DAC to connect to the 203 and solve the problem. 

Does anyone know if this would work and what I would need to do to set it up?

Thanks for any guidance.

I also had the 205 and recently sold it for $2k to TMR.
On your own you may get $2.5k+

Before I sold it I used an Denafrips Ares 2 DAC. It became
oh so apparent that the Oppo DAC was way inferior.
No golden ear required.

My move was to sell the Oppo, buy an Innuos Zen 3 Streamer/burner/storage new. Then I bought an Audio Mirror DAC for $1.5k 
All in at $3.7-$2.0 Oppo money = $1.7 net in upgrade costs but now have everything I need. I did stumble across an Oppo BDP 93 at Goodwill for $18 so I can still play the occasional movie too.