Looking to put my Brembo six pots on tomorrow.

I've changed a caliper on my wife's Mini Cooper so I assume it's the same?

Clamp the pipe, unscrew the pipe, put pipe in new Caliper, tighten, unclamp, check for leaks and bleed?

Is that too simplistic?

J 2012 RRS HSE. Firenze Red.

From reading your post and not knowing a great deal about RRS brakes yet I assume that the Brake wear indicators are interchangeable, that is of course if they are fitted? Your other assumptions on change seem logical to me. M16 SVD8 ,4.4 HSE with a few extras, Sold R50 , Wife SQ5 , BMW R1200GSW.

You might want to bleed it first, then check for leaks with some one with there foot on the brake ... 2008 G4 RRSport TDV8 current
2009 TDCi 90 current
2018 Discovery 5 HSE lux current
1994 Dakar current