Just for completeness, managed to dig out the invoice. Part numbers are:

129 770 35 14 - Bracket £16.63
129 770 36 14- Bracket £16.63
129 774 43 14 Bracket £1.98
129 774 44 14 Bracket £1.98
129 984 06 29 Screw x2 £0.92
129 992 61 01 Bushing x2 £0.18
129 993 09 20 Spring £0.76
129 993 08 20 Spring £0.76