If you are going to be wishing for things like the perfect employee (knows lots of languages, is proficient in all of them, is cheap) then you might as well just wish for peace on earth, good will to mankind
And while you are doing that, take a look a what people with experience in only a few areas are being paid, and then factor in some overheads. Or in other words, is that $100k as salary to them and you will have a bunch of overheads to carry, or is the $100k including overheads? Because if it is the latter then you are going to realistically be offering well less than $100k salary.
You get what you pay for, and if you cheap out on a salary you are not going to get people anywhere near as good as you think you need which has the potential to damage you business.