Coupling Cap Values for a VTL ST150?

I'm about to have a coupling cap upgrade performed on my VTL ST150 tube amp.Have found an experienced modder to do the work but need to order the parts first.Need to know how many coupling caps and what values they are.Any help would be greatly appreciated.
Usually the value is .47uf but guess you should check with the ones that are being used in you amp.

As for what type of cap, Jensen Paper-in-oil caps tend to be more musical, a bit roll off top, euphonic sounding, while Hovland caps tend to be more neutral but still very musical, detail with sweet treble.
Your experienced modder should be able to provide this information. If he can't then you should keep looking.

Here's one person's opnion