Nuvista 800

Hi, I’m planning to buy the Musical Fidelity Nuvista 800 (Demo Unit for more than a year) with a 50% discount at around $5k.

Is it worth to buy the Nuvista 800 at this time? Because I’m planning to replace my old system with the Cambridge CXA81 together with CNX v2.

I’m also considering the Hegel H190 or the H390.

Can anyone help me out? Thank you.