The chevy brakes do not change the steering knuckles. So no change to the steering. Providing everything else is stock, stock 71 to '75 (actually all the way back to '66 if you look at D30 parts) steering stuff will work.
Now for needing a body lift. Unless you bubble the floor, expect a body lift. I never ran the 205, only the slightly smaller D20. Even that took a bit of floor clearancing. In my case, an inch would hae done it. I would expect 2" for the larger 205. If you get other numbers run with them, mine is just a guess based on what I have done.
