[Jac Mac]

This is Girling, Willwood are making similar with their name cast on them now , available in 0.625", 0.700", 0.750" bore. Use with remote resovoirs to get fluid head above caliper heights to help with residual pressure etc..

Not sure they are what you need though, on the original Daytona during build the clutch had integral reservoir (P89 in 'the' book ).Both brakes used external hi mount reservoirs and later pics show clutch converted to this also.