In the end, I couldn't get the arm back in due to lack of space under the car and not wanting to damage anything I'll be getting them fitted by my mechanic.
Will update on how they feel once fitted.
Quick tip for those looking to do this themselves, get the rear bush aligned and the bolt through before trying to put the bolt in for the front bush, makes installation much easier and stops you stripping the threads on your bolt.
The solid rubber bush is also significantly harder to manipulate in order to get the bolt through so bear that in mind.
The original bush with 57K on it didn't look too great
Part numbers:
Ibiza cupra LCA
Lemforder 42651 01 (Right)
Lemforder 42650 01 (Left)
LCA bolt front x2: N 106 405 01
LCA bolt rear x2: N 105 524 02
LCA nut rear x2: N 015 081 6
Ball joint nuts x6: N 103 320 02
