

I hope his boss has a sense of humor cuz after he sees this price tag, OP might join the unemployment line. That or the company's incredibly wealthy (in which case, it'd still be cheaper to hire a pro photographer for the event).
LOL. If his boss wants to do the job right, that's the cheapest route, and I'm being realistic compare to other posters in this thread. I don't know how much a pro photographer would charge for an event shoot, but if the OP's company holds events all the time, it could be cheaper in the long run. Plus, equipment lasts pretty long if you take good care of it, and I don't see the need to go for a 5D3 or an updated 24-70 in the near future if the current gear works, especially in low light.