Hi, I'm about to remove an external wall about 3mtrs long with a 2mtre wall joining it at 90degrees. I'm putting an rsj in with an engineer brick pier on one end. Above is a small split level bathroom. The end result is to double the size of the kitchen. Can i prop up the bathroom with acrows with scaffold board spreaders on the internal and then use acrows with strongboys for the supporting wall? I want to take it all out in one hit! Is this the right thing to do. The bathroom doesn't seem to be carrying too much weight.