$5K is real money so hopefully you can listen to options rather just following suggestions from us Internet forum slobs!
Most HiFi is priced at different cost vs performance points. At the lower end doubling the investment will reveal real improvement. But the more you spend the weirder the relationshio between cost and sound quality gets.
So, if you have access to audio stores I would audition kit at your budget plus kit below and above your budget. Does the cheaper stuff really sound poorer to you? Does the expensive stuff blow you away or does it reveal a bad land mine you will be thankful of avoiding?
Trust your ears and enjoy the journey…