So I'm looking to upgrade the somewhat wallowy suspension of my 1990 318i. Last year it had new rear OEM springs which still seem unbelievably soft and I'm looking to what next.
I currently have some eccentric control arm bushes to be fitted when I find the time and tools, looking to replace the rear arm bushes, front anti roll bar links/bushes aswell.
But, as I don't have a rear antiroll bar, I can't just replace the links and bushes and be done with it... so, I'm looking at getting one

Couple of cars being broken on ebay, but how much should I be paying for a rear bar, and anything to check on them to ensure that they're not scrap? (or is it worth getting a new uprated one?) I'm also unsure on what size bar to get out of the three standard or uprated ones. In the future I'll be looking to do a 6 cyl swap, not sure if the same bar will cover both engines?
Anyone able to provide an insight from experience?
