For such money, I am willing to fly from Europe to your place and do it :D
So, the truth it, as many of above said, no one wants to do it, even tho, I think, it is not so small job. They think its small (companies).
I paid a lot of cash for similar job, because i was stupid, not having a knowledge is expensive.
Later on, i did concrete steps on my own, saving me $1k in job alone. Well, I paid for the project $70, so i would need to deduct that. i did all the wood/framework, rebars, getting cement+gravel (1:3 ratio, gravel 0mm-32mm (like zero to 1 and a 1/4 inch) into interior, buying mixer and packing it to hatchback, then mixing it, pouring it to the buckets, dragging it up the stairs, pouring again finishing it, all in 7 hours nonstop, like 1 cubic yard(or close to 1m3). anyway - on my freaking own, no helper at any point. next day, no problemo, no pain what so ever. because i did take a cold shower, maybe that did help? who knows :D i am not used to do such hard work, BUT, i would not repeat it, it was insane speed and work pace, insane. i could not stop, but hell, i was tired that evening like never before. luckily, next day was fine, but remember - one injury in your back or anywhere and even that 14K offer would be better deal, than the injury, so be CAREFUL .
What I am trying to say, welcome to the insanity of the concrete work/compaies - prices makes no sense at all. Going with DIY is good, sometimes awesome, but needs perfect planning..