Wintering important !!!

Hello, I know that there are enough posts here about ́s wintering, but I wanted to have a par thing clarified again !! So : – thin oil layer on the brake disc to prevent frosting, I have read where, but is not this a problem for the blocks, which suck themselves so under circumstances full suck or just no more brake performance ?? – Pick up yes no ??? because I have heard that it is the forksimmerrings (so the stripping seal, etc ) loaded, if there the g anze weight of the wheel attached ? Is it enough to mount the bike with increased air pressure on the main stand ?? – Oil change before or after wintering ?? – Do I need a gasoline stabilizer that prevents the petrol from chemically changing in the tank ? (gasifiers can of course run empty) – Does it harm the O-rings of the chain when I use them, after a cleaning with diesel with normal engine oil ?? mfg