If you're using purely CDs, I'd be looking at an Innuos media server onto which you can rip all of your CDs (up to around 2,500 onto 1TB). This doesn't even need to be anywhere near your system, and can be placed anywhere in the house as long as it is connected to your network and you can access it to pop in the odd CD you want to rip to it. Mega easy to do, and equally easy to edit metadata on phones/tablets/desktops via any web browser. You then just use your MiND app to access the music on it - it's a shame to have streaming capability and not use it!
If you have any SACDs or DVD-Audio discs as well though, I'd add something like a Cambridge Audio CXUHD, which you can then plug in digitally into your Neo Ace. Alternatively, you could look out for a used Oppo BDP103, which you might pick up for around £300/350, which will have similar features.