Don't recall what all that kit includes but with 2" of lift you shouldn't have to do a lot. Yes, on the margin cam bolts might help, although with a 98 you might have them OEM. Check. Caster not going to be thrown off that much anyway. Bumpstop extensions, in particular in the rear, probably are necessary if not included in the kit. Disconnects for the front really depends on you and how you'll use the jeep. Not required at all, but probably some benefit offroad. Reference to rear sway bar relocation bracket doesn't make sense. Do you mean track bar? At 2" of lift you probably are fine, but that's a simple fix if you do end up needing it. You are unlikely to get vibes with only 2" of lift so hold off on the MML. If you are one of the unlucky few who do it should only take a couple washers to space down the TC skid and then you can decide what your permanent solution is.
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