It may be easier to take the fenders loose, hood off, radiator support loose and a few other items. Then set the fenders and all off as a unit. (Hard to do without help)
After the above you can get easy access to the radiator.
Owing to you car being so nice, you have to be especially careful no matter what process you use.
Pros and Cons in your process:
a. Pro. It may seem less intrusive operation/surgery.
b. Con. May be more libel to bend some fins in the radiator core or punch a hole in a flue,
c. Pro/ You can do the job without help.
d. Con. Much more stress,
e. Pro. You can tidy up the front of the engine with the whole unit out of the way.
f. Con. May take less time but more stress whilst doing it.
g. Con. Within earshot range, you must keep the area clear of women and children. This may prove to be a frustrating and unenforceable task.

Good luck with your choice of disassembly. Afterwards, you will undoubtedly wish you would have done it the other way.
Best,
Charlie

BTW: What does the manual say about this issue?