Eico HF-81 best tube combo

I just purchased this gem and currently don't even know the tubes that are in it. I am planning on having it updated and that includes the tubes. To get a feel of my system;
Logitech transporter with Shuguang black treasures and Emission labs 5u4g mesh plate,
Artemis labs PL-1 phono preamp
Garrard 301 with SME 3012r arm and Denon DL103r
Nottingham Spacedeck with Ortofon rhondo blue
Klipschorns

I don't mind spending money on tubes as I have heard the difference. I have also been running some NOS tubes as well.

I am looking for comments, questions and suggestions.

Thanks