If you are happy to live with the cons, then it may be the option for you. Keep in mind it is not legal.
An added con is, that already bus-like turning circle, will only get bigger. So say goodbye to tight carparks.
It is a case by case basis regarding the breaking of components. Some do, some don't.
I would; however, try and track down a secondhand locker before going to the extremes of welding.
You will want to make sure that the welds are clean and no weld debris ends up in the diff carrier. It will chew the bearings up quicker than the time it took you to weld it.
You will likely end up defected and not able to pass a roadworthy, depending on state.