New NAC 62 Owner

Hi everyone, this is my first post. I have just bought a silver bumpered NAC62 which has 323/2 K MC cards installed. I can't use it yet as I have still to get a power amp, probably a NAP140. My question is, will the K boards be suitable for my AT OC5 cartridge in my Linn Sondek, with Ittok and Pink Linnk PSU. Or would S boards be more suitable. If I need S boards is it just 323S that will fit or can I use 523S boards instead?

I have always wanted Naim amplification since I visited the factory in 1985, but have only just managed to get on the ladder now. I'm looking forward to the day when I get the 140 and can actually listen to it! I have a Cyrus 2 at the moment.

thanks for any replies

Niall