Bilstein 5100 questions

Hey guys. Love the forum and I've seen a lot about the bilstein 5100s but not what I'm looking for.

I installed them wrong the first time I out them on, tried to fix it and didn't do it quite right. So if anyone can tell me what order to place the washers and which way the lower washer goes that would be awesome. And do I actually need the shock dust cover or would just the lower washer work the same?

Second what position would be best to set them at. Currently at the third setting but I'm thinking going up to the fourth setting for more tire clearance. I don't mind the BROrunner look.

On the topic of tire clearance and know it's been asked a million times but what would I have to do to get 33/12.5/17s into the truck. I'm sure I'll need wheel spacers but how big do I have to go on them. I'd rather not back away at the truck just yet.

Thank you all in advance for your input and advice