Hi Russ, welcome to the forum.
Is the machine in working order?
As Jake has already asked, what type of water are you using as descaling the V might be tricky?
It is a great machine that gives their owner the opportunity to experiment in a broad range of parameters, e.g. pressure, temperature, time, etc. to achieve some memorable results.
@DavecUK has developed, together with Paolo, the V and you could not find a better place to learn more about this machine.
Parts are usually purchased directly from ACS, unless it is something very standard, e.g. E61 replacing kit.