Anybody know where I can buy the tan/beige gelcoat so I can repair a few spots on my scorpion? I've tried the mix it yourself stuff and I can never get it to match remotely close.

Try Spectrum Color - Auburn Washington (not sure if they still exist or not). Bought chris craft beige 82 gelcoat from them - part number: F50-0849.
bought this in 2002 - so it's been awhile

Don't know how good you are at colour matching but I mix all my gel and add tinters. That is the best way to get a good match.
If you can find a factory colour then go for it but that is rare.

If your not sure on how to tint then ask someone local to show you how.
By the way...from my experience I just use a small mixing container, those little ketchup cups at McDonalds are great!, and mix the gel there. Start with white and then mix tint in very small quantities (use a toothpick!) No more then 10% should be tint. (I never get that high anyway)
Once moxed, add hardener then apply with popsiclestick if its a small scratch or use a proper spraygun with a large oriface if your spraying in a spot. Let dry...Wetsand with 800 grit then 1500 and polish.
Should be an invisble repair..................

Good luck, I hope that helps?