I'm looking at springs for the suspension overhaul. Since I'm going to have the rear out for brakes, I may as well do suspension while I'm at it. I've pretty much settled on the KYB shocks for the front and rear but have been looking for springs. XKs Unlimited has some for $40 or so a piece, but Welsh Enterprises sells UK made springs for $75 for the set of 4. Is there any huge difference in quality to make one company's springs to be so much more?