Correct me if I’m wrong, but that conversion to US dollar would be around $3,251. It may help to know if you’d be open to the used market.
I have no experience with Auralic and can’t comment on whether a G1.2 is planned. I had owned the NAD C658 for a few years with DIRAC full version and UMIK. I recently sold it on the used market and was able to grab a Teac NT-505 (approximately $2K when introduced in 2020/21). I’m not suggesting you look a Teac, especially since this DAC does not appear to meet your criteria. What I am saying: I found the Teac more engaging and not nearly as “hard” sounding as the C658. My suspicion is that you’re paying for the features and convenience of the C658 at the expense of SQ. If I didn’t have this experience I’d say that the Altair could have the potential of being a sideways move - I don’t think this will necessarily be the case in this situation.