Hi Samuel and welcome to the forums
The Gold series is only made to order now and have a full UK retail price of Â£1999. Most of our time is taken up building the Legacy range but some people like the understated appearance of the Gold's and the different attack response that comes from the AXX bracing.
Your S100 will have Mahogany back / sides and neck with a Spruce soundboard, Ebony fingerboard.
I hope that helps and congrats on your new / used Avalon.