I have never encouraged anybody, friend or associate, to spend on HiFi in using great sums of monies, but if an individual is set in the mind and want to indulge themselves, I will assist with suggesting options to consider if prompted.
As a first suggestion, Start receiving demo's of New Model devices of Interest or complete set ups, that will cost in today's money $120 000+.
When the funds materialise the shortlist put together might be able to be found for very close to your budget.
As an alternative suggestion, an investigation into and receiving demo's of used equipment in the range of similar monies referred to above, could be presenting devices that have had much more substantial retail prices and have a few reviews on them to be found, that might be valuable and worthwhile reading, especially learning how the devices might have worked in conjunction with other devices.
80K being touted as a budget to become available will win one quite a few friends, cautious steps will be needed.