Sorry its 10mths later, nice write up and acurate.My cousin worked at Washwood Heath & raced for Vale & Kings, Brian Edwards.
Went into the car trade (Colmore Depot)
September 1980 I bought Yamaha FS1E DM EON225V, £325 OVER 3yrs, I ran it into the ground in 18mths sold it siezed for 25quid...