Well i said i would post an update when i got the problem sorted so here goes.
I resorted in buying 2 secondhand ones, purchased from Cit-Ren, Poringland, Howe Pits/Norwich Rd, Norwich NR15 1HJ
(in case anyone was wondering).
Luckily i am good friends with one of the guys there, got each one for £25, so that is a total of £50.
It is what is at this point i guess:

I proceeded to get the flaky rust off and then sprayed the darn buggers with a primer and then actual coat:

LMAO, you could almost pass them off as brand new from that picture. i will be damned if they ever rust again, at which point it will probably be so much more of a nightmare, than the car would be worth (another 10 years, perhaps, wishful thinking lol).
My mechanic laughed "hey they match the colour of the car", who can blame him lol.
#notbeatbyrenault ! lol £1,300 rear axle!? i think not !