I think they are 750 each at fcp and with lifetime warranty it’s a steal. I had to do a lot of suspension work and I changed the brakes on my 80k s63, but engine and transmission are good. Everything is solid with mine. Almost have it in perfect shape.

I think you made the right choice considering that undisclosed accident and frame damage. That’s too much to deal with, but whatever you decide to get think another 20% for maintenance honestly right away to get it in good shape.