couple of question before i fit forged rods

hi all i got a couple of question i need to know before i start fitting forged rods in my 1.8t agu engine. never done this before so hope all goes well. ok so far heads of sumps of ive took piston and rod no 1 out as seen in pitcure. bores look clean and no marks



ive been watching the youtube videos part 1-5 but some things arnt clear to me.

1. the piston rings look fine so i be re-using them. is there a certain way the rings have to be lined up to each other? or aslong as the cut outs arnt all in 1 line.

2. whats the best way to clean the piston? there is some  oil/dirt in the piston rings groves. is using a wire brush ok for the top of the pistons to clean the carbon

will it not be better to put new rings in while you at this stage last thing you want
is once you have put it back together you need to change the rings.

i know i should but rings look in good condition plus its a low milage engine plus rings look hard to do

Lol am in the middle if doing a rebuild of a 16v turbo
Getting my mate to put the rings and the head lol

all sorted fitted them today with no problems