Pricing for the 4.6 "kit" is around $3,500. I would expect the Duratec pricing to run comparably ridiculous at anywhere between $2,600 to $2,800. Keep in mind that for daily driven vehicles, a setup like this would require regular adjustment intervals of 5-10,000 miles. Additionally, the sound of 24 solid lash adjusters will end up sounding more along the lines of a mid-80's Mercedes diesel. Albeit an 8-grand capable mid-80's Merc diesel, but a loud one nonetheless.