go to autozone and rent one for free...You put down a 50 dollar depoisit and get it back when you return the tool....

If you dont use a spring compressor you can be killed. But I've heard of guys losening the stuff twoards a box so they can catch all the stuff. This is while another guy stands on the spring so it doesnt shoot away. A 6 pound spring under compression that shoots away can and will kill you if you get hit in the head.