For those who've never actually seen an all-acoustic 5th Avenue, here it is - and I can, in a side-by-side A/B play-test, vouch for the acoustic superiority of the non-pickup version over the P-90 Kingpin:
Getting a little hard to find, though - particularly in the blonde and black finishes (I was lucky enough to score a blonde CW II - the single-cutaway, twin P-90 electric version - before they went out of production) - so if you're serious about one of these, you might just have to pounce on the first one that turns up before someone else does