Superphon Revelation Mark II - Mods

One of these have recently come in. It is fully operational no problems there. However it appears to me that it could use a better Volume pot. I have in the parts bin a TKD 25kohm, is this a proper value for the Revelation MK II. Any other suggestions?
Hello Ferrari,
What is the web site of manufacturer (Stan Warren, I presume)?
Someone just sent me Stans e mail address, we will if I get a reply.