Custom tailors generally limit their valuable house-calling services to clients whose Bentleys drive Ferraris. 12 Threads'll fit you at home, and all you need is to not be homeless.
Just arrived from LA, 12T specializes in affordable, fully custom dress wear, which they'll size you for in the comfort of your home/office, any time day or night (unlike other late-night work for hire, you'll end up with something you'll wear, not something you'll carry). Upon arrival, your tailor will take at least 25 measurements, then suss out your desired garment's look, fit, and function (where you'll rock it/how it'll best complement your body/# of pockets...); if you need inspiration, 12T provides prototype sketches, from button-downs (e.g., the tapered/pocketless Milano, the fly-front/spread-collar NY), to blazers (e.g., the Italian-cut, zero-vent/3-pocket "Modern") -- or you can just timidly point to a GQ spread, and try to hold back the tears. Next, select materials, from thousands of cashmere/wool/linen suit swatches (the very same textiles used by the likes of Dior, Ferragamo, & Versace), to 100% cotton shirt textiles in solids/stripes/plaids, to subtler bespoke options like a selection of 40 old-school crests for your sport coat's buttons, or dozens of silk dragon linings ("underneath this Bond-like sophistication lies a Dragonheart")
12T's offering up a slough of opening weekend specials, including 20% off any suit package if you mention Thrillist. Your getup'll take about 4-6 weeks to arrive, or less than 2 with a rush order -- a financial sacrifice best undertaken only if your Pinto drives a Metro.