Ebay shows 60D bodies and kits going for much less than what you're hoping.

Again, I'm surprised that YOU haven't identified which piece of your gear is most due for replacing.

The 50/1.8 is soft below 2.8. Once I learned to shoot it at 2.8 instead of 1.8, I was much happier with the results, but then it stopped getting used alongside a 16-35/2.8 and 70-200/2.8IS.

Would a studio lighting kit work for the indoor stuff you do (i.e. is it mostly portraits, with outlets nearby)? I'd really consider that.