pathfinder wheel ?'s

their the newr style alloy ones i just picked some up for 50 bucks sounded like a good deal to me so... 1.what size tires should i get for them?
2. can i still flip my ball joints?
3.what about cuting the arms dose that make the whole pack bigger or smaller?

p.s.im bagin the front end sometime next week... if things work out

anyone?