Thinking more about James' suggestion it occured to me that when I say there's no room to get at the bolts, I was checking it with the regulator still bolted in place. I'm going to try to loosen or remove the regulator bolts and see if I gain enough room to get at the motor bolts. If that fails I may have to try drilling the door skin. This is a slow motion project, summer in AZ, and the AC is working fine, but I will follow up here when I get back to it. Thanks for the help.