I have a butternut 67 convertible with 14" wheels and drum brakes. The rear end is a 10 bolt I beleive 308??

Here is my plan:
Add
1.wheels and tires 17"
2.lower car 2"
3.front disk brakes

Here is my dilema:

I recently saw a 69 Camaro that had the look I am looking for.
The car had B.F.G's G-force 245/45 ZR17 95y in the front. 275/40 ZR17 98y in rear. I am not sure what size width of wheels.

I would like to get the wheels first, then brakes and lower next.

Would the front disks change everything??

What order should I do this??

The Camaro had American TT2's and disks all the way around.

Help is appreciated as I feel like buying the wheels and tires this week!!!!
Thanks!!!