SL1210 power supply build

Advice i am looking to build a new power supply for my deck I have found this site https://www.audiophonics.fr/en/linea...su-c-6305.html
Any advice on what board to go for and also a transformer to get ?
I have the original timestep power supply and want to upgrade it .

Many thanks Gerry

Timestep is not OE so its already upgraded

The timestep I have is the first timestep that was made and I know they have come a long way since then.
Hense looking to upgrade.