How much would it be to repair my Honda cbr F2?

So i have a 93 Honda cbr f2, 600cc, 18,000 miles. Its been sitting, cranks but wont start, it has a new battery. I'm pretty idiotic when it comes to motorcycle repairs since I'm a beginning rider. Basically I think it needs its carbs cleaned, re synched, spark plugs changed; also the on/off switch is stiff, horn doesn't work, and the throttle feels stiff. Any ideas how much itd cost to get this worked out, btw I live in northern California.

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