1. There's a nice write up by out fearless leader in the DIY section
2. You could replace them yourself if you pick up a pickle fork from the local autoparts store. It's a common rental type thing. But, you should just order ones from somewhere online with new full metal balljoints preinstalled.
3. If you can take wheels off you can put spacers on
All this is relative to your level of mechanical ability. Only you can determin if you can do it or not.
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"WAAAAAAARRRRRIORS, come out to plaaaaay."
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