Danny your snippet of info regarding pay was bang on. The civilian labourers filling in bomb holes etc. at Kenley were reputed to be being paid £1 per day. This was more than double the usual rate due to the dangers of UXB and other nasty things. Whilst an LAC flight rigger or engine mechanic was being paid 5 shillings per day and a Sergeant pilot was on 12 shillings and 6 pence per day. Certainly makes you wonder does it not.
On another tack. The numbers of ground crew/support staff killed on the BB airfields during the battle has never been accurately established as no specific account was kept of them. It could be as many as 300 but this may also include those that died of more natural causes. Counting graves in cemeteries close to the airfields can give some indication but is certainly not an accurate one.
Just like the chaps fighting in the sky they too gave their lives for the cause but are sadly rarely remembered.