[2001 ZTS]

So the 2005 ZX4 ST has disc barkes at all corners plus the fronts are 1" greater diameter than previous according to a brochure Ford sent me yesterday.

I'm sure it has been discussed on other boards. If I wanted to put those brakes on my 2001 front disc and rear drum Focus:

1. Are there any retrofit issues besides cost?
2. Are these 2005 brakes teh same as SVT?
3. I assume 16" becomes the minimum wheel size?
4. Considering any 'big brake kit' would cost $1,000's what are guesstimates as to how much it would cost to just walk into a Ford dealer I trust and just say "do it"?

Please limit discussion to items 1-4 as I am already aware I do not necessarily "need" big brakes to begin with.

Many thank yous in advance.