justforjeeps has all the skid plates for sale individually.. let me see if I can pull up the link
got it.. http://www.justforjeeps.com/fueltank.html
As for the grill guard, a lot of guys get the SteelCraft one. You can look around for those pretty much anywhere.
1996 ZJ: stock with some lights and a grille guard thrown on, now retired
2010 KK: K&N CAI, Viper TB, Hypertech Max Energy, Hood Strut Mod, Weathertech Liners
"If everything's coming your way, you're in the wrong lane!"