Sorry to be a party-pooper, but I think these kinds of mods (and the $1300 or more spent on them) are not a good way to find better performance. Much better IMO is to find a good performing separate DAC and let the Oppo feed it by spdif. That way you keep the Swiss Army Knife qualities of the Oppo and improve the sound considerably. The money spent on the mods will get you a very good DAC, easily better than the modified Oppo. Of course doing that, the 203 is about as good as the 205.
If you should later decide to sell I think you will do better, proportionally, with a factory Oppo than a modified one. Also a DAC will have several inputs and you can build a more flexible system. Finally, digital technology both regarding input to a DAC and the DAC itself is running very fast. With a separate DAC you will be able to upgrade at will.
Just my $.02 after having considered a mod of my own Oppo.
If you should later decide to sell I think you will do better, proportionally, with a factory Oppo than a modified one. Also a DAC will have several inputs and you can build a more flexible system. Finally, digital technology both regarding input to a DAC and the DAC itself is running very fast. With a separate DAC you will be able to upgrade at will.
Just my $.02 after having considered a mod of my own Oppo.