Front end components, keep or upgrade? Update- went Moog

I have had good results with Moog, but be sure you get the K line and not the economy line, it's junk.

Personally I would invest in better quality parts if I was going to spend the time re-doing the front end. Go on the website of the store where the parts are from, find out how much they cost new and sell them for about 2/3 of that on CL or FB classifieds.