Hi Silverhawk,
Regarding your B737 reverse thrust useage after landing with one engine inoperative - Not So!
Boeing does not recommend any particular use of one engine out reverse thrust after landing. They just say that each individual airline should develop their own procedure, and practice that procedure in training sessions.
I don't think any operator would suggest such an extreme procedure, it's simply way to dangerous, most, I believe, would use only idle reverse on the operating engine, and auto brakes to suit the conditions.
Cheers