$50 Tops is a good number, the local pull a part here sells spindles for approx $15 a side and thats what I use for comparison pricing I'm with Mike on new rotors, calipers, bearings, hoses and MC. You can use the old calipers from the set you purchase to cover your core charges. The late fox V8 stuff should move quickly via craigslist or ebay.
http://www.pullapart.com/pricing.aspx.