With the mirrors aligned the laser marks a lot better and not double. With the correct home corner now specified my images are right side up now. And correcting the workspace size keeps the gantry from banging the sides as it did. I consider this a success.
I do agree that the laser is on its last legs and needs replaced. I probably should replace it before i list it for sale. Someone might want to see it work first. (most Co2 lasers for sale near me have dust piled on them)