Good local fitter is important no matter what
Bad Juju, if you can get a stock bike that fits you well, it's alot less hassle than going custom. There are alot of very good stock bikes out there, and they may be more appropriate than a custom bike. Having a good fitter is just as important for choosing a stock bike, too.
If I the pre-built Luna that I bought had not fit me, I would have worked with my local shop, which is a Luna dealer and the owner of which is a fantastic fitter, to get a custom Luna. Margo of Luna is an experienced fitter, and she worked with me to tweak the pre-built, although it didn't need much tweaking. I would not have bought the pre-built Luna without going out to New Mexico to ride it and have Margo fit it to me. Luckily, I just happened to be there for another reason and decided to take advantage of the opportunity.
I know what I like in a bike after riding them for 25+ years, including a few racing years. I felt comfortable getting the Bike Friday remotely; I also didn't just send it the form, I talked to them alot.