patio door replacement roller
I don't think the 81-149 will work because the adjustment screw is at the face side of the door frame. The Acorn 81-030 roller has the adjustment screw at the edge side of the door frame.
Take a look at our 81-138 instead. It's a little smaller than the 81-030 but has a similar design. Ask your contractor if that could work better.
Your doors could just be heavy, which would account for why they're hard to operate. As for the keeper not extending out far enough, it could be because the patio door stile and jamb are not plumb with each other. Have your contractor check to see if the door and frame line up with each other. There is no shim to speak of for the keeper. Washers would be the best to build it out, if there is no other solution.