1. I've not heard of people having issues with that. Never had an issue myself either during the 5 lifts I helped with.

2. Raising the radiator is not really necessary because all the piping still reaches and there's no real benefit for it being higher. It's not really in the way to begin with.

3. There are two bolts. Once you look from the driver side down, you'll see a splined section that you need to reach. About 6 extentions will do the trick. You also might need to move the steering around before you tie it down to make sure the bolt is facing up and is easy to reach.

4. Extra washers because the kit always seems to be missing some. Bolt length is fine. I think that 3 out of the 5 BLs that I helped with were missing some washers. One kit hardly had any at all.

Good luck!