No problem, you'll be good to go with just the plugs. Lots of trucks run with just 4 tires and the means to repair one (even if that means is back at camp). that's an old rule that will likely be revised before the event starts, since it's never been realistic to enforce it anyway.
99 uzj100, gx470
05 525EXC, 01 XT225, 07 TTR90, 07 CRF50