Upper intake gasket?
Yup we don't have one of those we have the Supercharger gasket and the lim gasket. Change both they're rather cheap and then change the coolant elbows to the aluminum ones and make sure your water pump isn't leaking. If you knock these thing out you shouldn't have any coolant leaking anymore. Without changing the SC gasket there's a chance that'll you'll be chasing a vacuum leak soon after do it the right way the first time.
You can check your waterpump by removing the belt and putting your hands on the pulley at like 3 o'clock and 9 o'clock and pulling on it if there's play then chances are your pumps bad and I would swap it out.
The abs/TC lights are easy to diagnose with the right scanner. Take it to I believe Oreileys can scan and code or go to a automotive shop and pay a little money to have them scan it and they should be able to tell you what the problem is without throwing parts at it. Call ahead and make sure they are able to scan abs codes for your vehicle before you pay them.
