Date of Jet Provost T Mk.5 Contract

Can anyone please provide the date for the sole order for 110 Jet Provost T Mk.5 basic training aircraft for the RAF built by the British Aircraft Corporation, Preston under contract KC/E/124/CB5(b). Deliveries between September 1969 and October 1972
XW287 to XW336
XW351 to XW375
XW404 to XW438

Also, would the contract also included the five Jet Provost T Mk.55s delivered to Sudan

TIA