Buy Sony X74L for under 50k & call it a day. I doubt there's any major improvement between X74L & Bravia 2.
From what I have seen in TVs at showroom, cheap 55" 4K Samsung or LG at 40k are enough for most, Sony has a bit better colour tuning, so can spend few thousands extra. But 60-80k TVs mostly don't seem much better. The noticeably better TVs in my experience have been OLEDs or good FALD LCDs with high zone count & high brightness. I think QNED 82 has edge dimming zones, IMO those are worse than no dimming zones. You need at least FALD 100 zones to make it not noticeable IMO.