I agree with 'dbphd' 2nd comment, the newer Oppo's 203 and 205 have much better DAC's than any of the previous generation models.
The Oppo 'Modwright' Mod is whole another level for 2 ch purist and I would not recommend this upgrade with SSP800/CAM600 unless you plan to use modded Oppo in a dedicated 2 ch setup.
You have a very nice HT setup; If you plans to upgrade video to 4K, I would lean towards switching out 105 with 205.
The Oppo 'Modwright' Mod is whole another level for 2 ch purist and I would not recommend this upgrade with SSP800/CAM600 unless you plan to use modded Oppo in a dedicated 2 ch setup.
You have a very nice HT setup; If you plans to upgrade video to 4K, I would lean towards switching out 105 with 205.