I just found a few notes I had on various crank Q-factors and other vitals:
Q-factors
Product Name: Shimano Ultegra FC-6800 Crankset 2x11
Chainline: 43.5 mm
Axle profile: integrated bb axle 24mm
Recommended Bottom Bracket: SM-BBR60 / SM-BB72-41B
Bolt Circle: 110 mm
Q-Factor: 146.6
Weight: approx. 670 gram (170 mm; 46-36 teeth)
approx. 676 gram (170 mm; 50-34 teeth)
SUGINO OX901D Compact Plus Crankset
PCD: Compact Plus＋(110mm/74mm)
Compatible: SHIMANO 11s, 10s
Chainline: 43.5mm
Q Factor: 145mm
Weight: 46-30T 165mm (713g)
White Industries G30 adventure gravel crank set
Price: $300 crank arms and spindle
Crank colors: black anodize or silver polish
Extractor colors: red, blue, pink, purple, black, gold
Crank lengths: 165mm, 170mm, 175mm, 180mm
Material: 2024 al
Weight: 570g *
Chain line: 2x: 45mm
Q factor: 171mm
White Industries R30 road
Price: $300 crank arms and spindle
Crank colors: black anodized or silver polished
Extractor colors: red, blue, pink, purple, black, gold
Crank lengths: 165mm, 170mm, 172.5mm, 175mm, 180mm
Material: 2024 al
Weight: 560g *
Chain line: 2x: 45mm
Q factor: 157.2mm