Lose Power Steering problems of the 2005 Chevrolet Aveo

Car went to 500 rpm then dropped to 300 rpm then down to 100 rpm; I immediately pulled off the main road to a side street. Lost power steering and was unable to restart car again. Car taken to local mechanic after running diagnostic tests on the vehicle, determined the car was savable and that the timing belt broke causing three sets of valves to bend. The timing belt kit, head gasket, water pump and valve kits need to be changed. The engine needs to be reconditioned; new engine oil needs to be put into the car along with flushing the fluids. Since this is a massive rework of the vehicle, it will be out of service one week and the repair cost is $2,100. 00. Mileage on the car is under 60,000, I am original owner. General motors - Chevrolet division contacted because I did not take to a gm dealer for service (unable to afford) and because they advised me this is so far out of the warranty, they would not offer any assistance. However, I did look up a service bulletin and it did say the parts are under warranty.