you would give up SACD if you replace the Sony ENTIRELY with an ARC player ... maybe use a current SOTA outboard DAC with the Sony as transport and also the Sony direct to your preamp for SACD??
you could also consider having the Sony "modded" but you will not get close to your return on investment if/when you sell
you could also consider having the Sony "modded" but you will not get close to your return on investment if/when you sell