I do 5-gallon batches.How big is the batch you are brewing @Clint Yeastwood ?
I do small batches (2-2.5 kg grains) and can easily lift the mashed grains, but it does get heavy, esp because of the height you start of from.
If you can keep the pot in place during the mash, then I would do so.
I move pot and all into a big igloo cooler lined with an old duvet (yes, I don't always takemy own advice)
Cooling is tricky with my hot temperatures. I do as much as possible with cold water baths and then do the final cooling on the counter or in the fridge.
I see that some people use an oven rack to drain bags. You put it on top of your kettle and dump the bag on it. I think this is genius. I bought a pulley thing, but I now think it's useless.