Turned out to be quite a story re:- the wheel cylinders... One boss crumbled and the other snapped off!....The replacement cylinders were ordered, only one arrived!
Eventually after a long phone conversation the other arrived, minus bleed screw!... And also it was a different size to the other!
The supplier hadn't got said bleed screw in stock so couldn't help and suggested the local Suzuki dealer!!
So, more out of interest my mate rang Suzuki... Wheel cylinders were £90+, plus VAT!! (Could get them tomorrow!....Bleed screw was within next 7 days!!)...
I had similar issues when I fitted the front caliper's recently, suppliers couldn't tell me if the bleed screws were included!!......How hard is it???....Or just a photo in the item description would have helped!😖
Anyway another phone call elsewhere finally secured the parts required...
On the upside, everything else to ensure good brakes I was told are perfectly usable, and shoes have plenty life remaining.
Car was finally collected at 4.45pm after an issue with empty cash machines!

Total bill for m.o.t, and an oils service, plus the brake work...
Drum Roll......
£390!! Not far out Kev!...🤣