Don't slime your ride!
A plug kit and a small compressor is an excellent idea. Seems that the trunk is becoming a crowded place with the regular carried items.
A word to the wise about SLIME. OK for your lawn tractor, not so good for your commuter or fun toys. I have been an offroader, ATV'er and duner for decades. SLIME and alloy wheels don't mix. On more than one occasion I have seen ATV Aluminum wheels separate the bead from the rim due to SLIME's corrosive nature with Aluminum. Granted the typical ATV wheel is only .090", but you can't argue the cause of the destruction.
Go for the plug kit & air compressor. Add a 12V power outlet to the trunk wall. Somewhere under all those Spyder covers, there may be a good spot to hard mount a compressor. Only put 1500 miles on mine. Have not stripped it down, but I am curious about what's under there!
Spyder-sense