Are subject fares published anywhere? I know that fewmiles published RTW but I can't find circle trip.

I' intreseted in knowing fare (economy and business) for a trip originating in UK and visiting HKG, AKL, SYD, SIN and then back to LHR. Could be done combining CX and QF/BA. I'm wodering whether circle trip fares would be less expensive than regular round trip with stopovers in these cities.

DAK