It should be a reverse one with PM at BGM. Cover the distance in 7 hr 15 minutes.
Start at morning 0545 at BGM, reach SBC by 1300. Return at 1400 to reach BGM by 2115 to 2130.
Existing VB should be SBC 0615 UBL 1130 DWR 1200; DWR 1315 UBL 1345 SBC 1930.