I kinda wanted one of those as I like the idea but they're super expensive (or at least the limited run they did later is). One is for sale in England at the mo and the asking price is £9K, so just shy of $12K US. And to answer the OP's question, for me the woods used traditionally for guitars work - so if I was building a set neck humbucking guitar I'd want a Honduran Mahogany body and neck, BRW board, and a Maple top I liked. I've never tried some of the fancier neck woods so I'd be open to Pernambuco or BRW etc, but I'd want to hear what they sounded like first so I’d at least have a good idea about what I was going to end up with. Maple would be a definate 'no' for me on a Custom, for example, as I can hear even acoustically a PRS Custom with one is a lot brighter than one with a Mahogany neck.