I need to replace my rear shocks (self levelling ones) as they were an advisory on last years MoT (rusting in centre!). So I started to dismantle today and noticed the offside rear suspension spring had broken off at the bottom - about one and a third coils up from the bottom. I gather this is a likely problem on these cars (stones getting in and snapping the spring).
So now I need both rear shocks (self levelling ones) and springs. A couple of questions then.
Autovaux don't list either of them on their website - although I haven't phoned yet.
I phoned Vauxhall on Friday about the Shocks, they want £136.30p each

and they are not kept in stock so need a special order - so a few days to get them. I didn't order them as I wanted to check mine first. I have no idea how much Vauxhall would charge for the rear springs as I didn't know I needed them when I phoned.
Does any one know if Autovox can supply both, and are they original parts, are they any good?
I had an issue with Autovaux before when they sold me an exhaust (Walkers) and they said they were double skinned like the originals - turned out not to be double skinned & the rubber hangers they supplied are perishing at the rear a year later, so will have to re-fit the originals! So am wary of what I buy off them now.
I don't have a VX trade card so can't get the discount from VX.
Advice on that, or other places to buy these bits cheaper than VX welcome.
Thanks.