I need of a solution to use a SRAM BB30 short spindle on a boost frame, today a direct mount 34T chainring will rub the chainstay. So looking for something with opposite offset.

Only solution so far is the CAMO system from WoolfTooth that push the chainring 2mm toward the crankarms. That would be enough to clear it and use even larger chainring.
Mountain ? wolftoothcomponents.com

Anyone else seen something similar? Any 104BCD spider that do the same thing?