So I'm gonna share a secret with you...
Nobody is going to be looking at you. Now with that said, I think its great you want it to look good. I am the same way, I want my stuff to look good, not only because I maintain it all very well, but I like to have pride in my equipment. Along with that, everyone at the track is busy doing their own thing and aside from somebody maybe saying that your stuff looks good, no one will care about what your gear looks like. There are a ton of guys who run up front with rough looking stuff, and there are a lot of guys who finish in the back with $250 worth of vinyl on their karts.
Just remember, YOUR racing is only to make YOU happy. If YOU aren't happy, then change it, but if YOU like something, leave it alone.