Help: I need a bathroom vanity top and it's proving to be a harder quest than I'd imagined. Can't find the right granite or quartz slab (looking for white with some gray, think Carerra marble) with option for fabrication but without installation (I have a contractor who is doing other work and will install). Anyone out there been down this path who can offer some advice or a reasonably priced fabricator? Really want it by next week.