www.racingsuperstore.com (Talk to Mike) -10 an Bluk head set of seals with 2 bulk head nuts. Just drill a whole, silicone that baby in and tighten it down. Make sure you're returning on top of the oil pan and not to low. No welding and you can do it your self. Works for me.

Make sure you clean out all the metal shavings from drilling the whole.