Rims.....Help with size?

[Stang Illusions 5.0L]

Well im looking at buying rims for my 94 GT! I have no idea what the offset is.
I want fatties on the rear and skinnies on the front all being 15"

NOW REMEMBER THESE RIMS WILL BE ON THE CAR ALL THE TIME "STRIP/STREET".

Questions
1) What's the usual thinkness for the front? Im guessing 5" since I still have to corner.
2) How wide of rim on the rear 10", 12", 14" etc....? Without scrubbing!
3) What offset should I be leaning towards? Also descirbe Metric/Standard?

Ill be running a ET street.

The rims I am looking at are ("Center Line Convo Pro Wheels")

 

[4point6GT]

whats an HID kit ? n how much + shippin

 

[The Green GT]

HID's are those bright ass blue lights you see on BMW's and stuff.

And yes how much for them?

Ill see if I can find the proper offset.

 

[ryclef331]

If you want the look everyone has, you don't want anything wider than a 15x10 in the back. I'd reccomend a 15x8 honestly. Much more than that is going to look like TOO much if you don't have the power to back it up. For the front, I know you want to be able to turn but you're not going to be auto crossing. A 15x4 will give you the look you want. I'd say a 15x4 on the front and a 15x8 in the back with 5.5" backspacing. See my sig for the look

 

[Hicks]

If you want the look everyone has, you don't want anything wider than a 15x10 in the back. I'd reccomend a 15x8 honestly. Much more than that is going to look like TOO much if you don't have the power to back it up. For the front, I know you want to be able to turn but you're not going to be auto crossing. A 15x4 will give you the look you want. I'd say a 15x4 on the front and a 15x8 in the back with 5.5" backspacing. See my sig for the look

Yea i love your cars look bro, the skinn'ys up front are what my dad is wanting to do.

 

[scarface]

I have 15x9 5.5 backspacing and 15x3.5....the rears are ok, but I would go bigger in the front.