Hi there. I'm looking to buy a new crankset, application is an Alfine hub with a ~47mm chainline (sprocket flipped) and it needs to have a 29t or 30t chainring for the ratio to be low enough. Unless there is anything else with outboard BB, I'm looking at a SRAM Double (probably X9) with Homebrewed inner 30t ring and their bashguard on outer, or a Middleburn Duo X-type with the 29t duo inner ring and the outer ring taken off.

Would anyone know the chainline to the inner ring for either of these cranks?