The RAF VC10 fleet had the following fuel tanks:
RAF VC10C1 and VC10C1K: Wing / Centre + Fin
Ex-BOAC / Gulf Air Standard VC10 (VC10K2): Wing / Centre + Fuselage
Ex-EAAC Super VC10 (VC10K3): Wing / Centre + Fuselage + Fin
Ex-BA Super VC10 (VC10K4): Wing / Centre + Fin
Regarding freight doors, the C1 / C1K and K3 had them, but they were only operable on the C1 / C1K.