mnnn ... i never advise refinishing a soundboard unless it's part of a more major/serious repair like a soundboard replacement for 3 reasons.
1. It's expensive, especially when you take into consideration the shipping costs alone from N.Ireland to USA, approx $280 door to door fully insured.
2. To do it properly, and the only way we do it is to remove the bridge, strip/sand off all the old lacquer and this means right down to the bare wood and rebuild again. This very process can possibly change the sound of your guitar slighty. Not everyone likes this idea.
3. And this is the most important bit ... why bother ! .... a guitar is meant to be played, a few scratches, dings and play marks are not damage .. they're character
But we are always happy to refinish a guitar if you like