It might sound complicated, but i want to get as much of what I own at the moment.

I am planning to fill one cooler with almost boiling water for the sparge.(red cooler on top)
I want to to step mash using my brew kettle so i can have a better control over the final beer, however when lautering I plan to dump the entire mash through the top of the kettle into the cooler with the screen bazooka inside.(blue cooler in pic).
I will sparge accordingly, then filter everything to the kettle again (at this point it will be washed of old grains sticking to it) and then start my boil.
the only problem with this is the lifting of the coolers and handling the hot liqour back and forth.
What are your ideas. For some reason I am weary of using a cooler for mashing, I feel i wont hit my temperatures and i will start to freak out if I go lower and have to do a fast decoction of some sort.
Leo