I finally bought a crimper for under $30.00. After making numerous cables for cars, boats, lawnmower's etc. I got tired of bugging counter guy at NAPA and bought my own.
www.rjays.com
I also don't agree with using welding cable. If it was so great the auto manufacturer's would use it, especially since its cheaper. It probably works great for these cars, but I don't think it would hold up for years like a duty rated battery cable. I used 2 gauge battery cable and don't have any starting problems. Didn't have any problems bending it either, I mean your not trying to tie bows in it or anything like that, just easy 90 degree bends here and there.