Floor install

Thanks alot guys. I seem to take a little from everyones ideas. Being that this this car is otherwise completly rust free and a hard top, I'm thinking that if I weld the frame connectors in (and not to the floor) it should hold the car ridged enough to remove the floor.
I thought about that with the brackets. I"ll photo it and draw it out with measurements. And yeah I'm thinking a multitude of tools.