Brake line flare and sizes

Hi, need to replace brake lines from rear on the freelander 1.
Am I correct they are all double flare, been reading not to use single flare on car brakes?
Ran pipes and did double flares but are leaking, so going to re do completely. Wasn't happy with the flares so going to get different flare tool.
Using copper pipe so all flares will be the same.

What are the sizes on the ABS pump, one is smaller.

Is there an alternative run to the far rear (UK passenger) side that doesn't go in the impossible space above the tank?

Thanks James

@andyfreelandy did a long and very in depth thread about the FL1 brake lines, and specific type of flairs used.

Here you go!!

https://www.landyzone.co.uk/land-rover/brake-pipe-flares-share-of-knowledge.347073/

great, thanks. Shall be on it the weekend.

Also have a read how not to do it!!
Shows the best tool for flares too, covers the types needed.
I would always use cupro-nickel pipe. Copper is so soft it twists off if overtightened or unscrewed after a few months when the corrosion has got it held in place.

https://www.landyzone.co.uk/land-rover/brake-flares-a-cautionary-tale.352733/#post-4704901