My dryer drum quit working
It sounds more like the belt on the drum broke. 
Most dryers are belt driven , it is possible if you turned it on enough times the NiChrome heating element over heated and broke.

There is normally a thermal fuse that blows to protect the element.

Prices are off topic as they quickly become obsolete, I have replaced belts, elements and the thermal fuses for under 100. 

Find a local repair shop call them give them the model number and ask for the prices on these 3 parts. They are easy to replace. I am sure there are u-tube videos showing how to swap out the parts. I have kept driers working for decades with these parts and some rollers for the drum when they wore out.

You may not need all of them but this will give you an idea.