I have 3 fuel pump wiring looms that are no longer needed for jobs, these were all made 3 metres long to allow them to be fitted to most vehicles but they are ideal for any nova/corsa/tigras.
The looms are waterproof rubber coated with 6mm ring terminals with rubber boots for the pump, fused relay, braid covering to battery with 6mm lug mount.
Chassis mounted earth for pump and relay earth, ignition live required to run pump or existing fuel pump live, a kill switch can be wired in for £5 extra.
£55 delivered
Custom looms similar to those above but to suit your requirement are £65 delivered
