Need help getting this car to work

I'm asking for help because I've fallen on hard times. My truck broke down a year ago and I had to junk it. My boss let me use his old car (which I am thankful for) until I could got another one, but my trade has been very slow this year and money has been very hard to save for a car.

Now I have a new, good job opportunity where I can make good money, but if I leave my old job I have to give my boss his car back. If I don’t have a car I can't get the new job. I found a suitable, reliable car through a friend that will only be available to me for a limited time, but I have no way to pay for it until I have the opportunity to work reliable hours in the new position.

With your help I can purchase this reliable vehicle and better support my 8-year old daughter. I hate that I'm asking for help like this but I'm in such a struggle right now and I don't know what else to do.