Just make sure the spindle length of the cranks is long enough. A "true" BB30 crank set has a shorter spindle as the bearings are pressed into the frame. Your BSA BB has outboard bearings so the spindle needs to be long enough to accommodate for this.
I’ve found the attached diagram that suggests the axle is 101.5 but including a spacer, the Wheels mfg BB suggests 104 as a minimum but from the inside of crank arm. Reckon that’s too short?
Just make sure the spindle length of the cranks is long enough. A "true" BB30 crank set has a shorter spindle as the bearings are pressed into the frame. Your BSA BB has outboard bearings so the spindle needs to be long enough to accommodate for this.