I checked on the B4's. They are about $205 each from several parts distributors. That seems like a pretty good deal. Install was quoted at 8.5 hrs by independent servicer. Or was it 11.5 hrs?
Go with the B4s . The paint marks are tough to see in good conditions. Peeking through the wheels with a flashlight at dirty struts may not get you a good look.
Here's a pic that shows the paint on the springs. Same on the strut bodies, but. The colors are like brown, red, green. https://i.ebayimg.com/images/g/h5gAAOSwbPxXP1Rg/s-l300.jpg