Once within 25nm you could descend to 3,400' and position yourself by intercepting the localizer before 10 DME, then at 10 DME descending to 1620' by the 4.5 DME. Save yourself 5 minutes.
As long as you get a clearance for it or advise ATC and remain above the MSA, you can do whatever you like.
ii. Is the correct answer otherwise.