Daily League Sudoku #35: Rank Killer Sudoku

This week a puzzle type taken from Richard Stolk's V2V test at Logicmasters India. I had planned on posting this type earlier, but my attempts at making one never got anything useful. So I made other puzzle types instead, that worked out easier. But this one seemed to work well.
This puzzle is again a harder one. I had posted a few easier ones in the last few weeks. This type has again some room for me to be a bit more creative with the opening. There's a few steps that combine Killer Sudoku and Rank Sudoku to start this one off. They are still all logical steps, but it takes a bit more effort to figure them out. I still think it is an enjoyable puzzle.

As a reminder all Daily League puzzles are also solvable at SudokuCup.

Rules for Sudoku

The sum of digits inside each dashed cage is given at the upper left cell of the cage. A digit 'N' in a circle means that the digit in the cell is the Nth smallest number in the corresponding cage. Digits cannot repeat within a cage.

Click to enlarge