A few weeks ago I posted a question on the Acoustic Guitar Forum about how much difference adi bracing makes. The consensus there was that adi bracing on an adi-topped guitar made a difference compared to sitka bracing, but adi bracing on a guitar using a different tonewood for the top might not make that huge a difference, certainly not enough to justify the BTO upcharge for adi bracing. [/quote]
Contrary to popular opinion on the AGF (above), I just watched a Youtube video where Bob Taylor was discussing adi bracing, and in his opinion adi braces on a sitka top made more of a difference than adi braces on an adi top. So when doing a BTO, this would be a huge cost savings. (Adi braces are a lot cheaper than the upcharge for an adi top.)
Back to the original topic, my ideal fingerstyle guitar would be a grand concert 12 fret with Engleman (sadly not available for BTO at the moment,) or European spruce and rosewood or mahogany. (In that same video Bob said mahogany is best for fingerstyle and those with a lighter touch, while rosewood is best for those with a heavier touch and strummers.) With the above 12-fret GC one might have to experiment with slightly heavier string gauges to support alternative tunings.