Which of these parts are not necessary and I can reuse the old ones?

XR3Z-8C299-AAA Radiator Cover
XR3Z-8A224-AA Running Horse Medallion Assembly
3R3Z-17B814-AAA Grill Apilique(Trim Piece)
N808040-S100 Security Screw
N808332S Blind Rivet
W705589S Nylon Push Pin

It would cost me $71.49 to peice this together myself from our ford dealer. Seems like like I can get this kit cheaper from ebay.

 

i bought the 3 piece kit from steeda and had it in under 30 minutes no problem. if you get a kit, just make sure it the three peice. as far as ford parts the only thing that came off my car was the honey comb with the horse in the corral. everything else you need is in the kit, plus once you get the blind rivets out you dont need them anymore. my kit came with 3m double sided tape and its holding strong.

 

Yep, make sure you get the 3 piece kit and not the 2 piece one. It's pretty easy to install.

 

The 3 piece includes the horse, grill aplique and radiator cover. The 2 piece does not include the radiator cover. Some folks say that you hardly notice the radiator cover not being there if you do the 2 piece. I got a 3 piece myself and I think it looks cleaner with the radiator cover.