I need some help sorting out my planned trip.

This is what I have plugged into the OW RTW planner at the moment.

CMB-SIN CX0710 17JUL
SIN-NRT JL0710 17JUL
NRT-HKG JL0731 25JUL
HKG-JFK CX0830 27JUL
--QFF SC Rollover--
JFK-ORD AA0577 02AUG
ORD-MCO AA1872 05AUG
MCO-DFW AA1589 08AUG
DFW-SEA AA2033 08AUG
SEA-DFW AA1230 08AUG
DFW-CDG AA0048 09AUG
CDG-HEL AY0880 12AUG
HEL-BUD AY3649 14AUG
BUD-MAD MA0582 14AUG
MAD-FCO IB3612 15AUG
FCO-HKG CX0292 15AUG
HKG-CMB CX0711 16AUG

quoted 838,591.00 LKR

I can’t find anywhere online that will quote a price for the positioning flights I want... (every where I look will either only get me to SIN or won’t give me a SIN-CMB option in time to connect with my first/last flights on the xONEx. If I get the CX SIN-CMB flights, it’s a simple turn around on the same plane. If I get another airline, I’ll miss the connection to/from the first/last DONE3 sectors)

16JUL
CBR-BNE QF950
BNE-SIN QF051
SIN-CMB CX711

17AUG
CMB-SIN CX710
SIN-PER QF072
PER-MEL QF776

23AUG
MEL-CBR QF850

Other then the stops in Japan, Hong Kong, New York/Baltimore, Orlando, Paris and Helsinki, it’s essentially a mileage run.
Current plans look like this

I have 425 status credits at the moment. With the above plans, I’ll get another 60 on the outbound positioning, then 440 up to my account rollover, giving me QFF Gold for the rest of the trip.
1150 SCs for JFK-CMB and 75 for inbound positioning. (wasn’t expecting that many... only makes me 175 short of Platinum...)

Is there any way to refine this any more? Is there anywhere I can get a useful quote/booking for the positioning flights without having to go through a travel agent?