Scan or print?: Whatever you decide will be fine Antonio!
Editing a scan (or print): There is nothing wrong with it either, it's up to you!
RC o FB: Choose the one that suits you best!
The thing is (in my humble opinion of course) that it does not make much sense this kind of debates when both (print & scan) end up going through the same "d_g_t_l bulldozer" (with all that implies that journey) just to be shown on a screen (not to mention the visual differences here as well, blah, blah, blah). Besides, on one hand, there's also the point of (a) showing your photographic idea with a specific material and (b) the point of trying to show your conclusions or ideas about that material on the other hand. While, the first one it is the author's personal decision which must be respected, the second one (for me) it is of zero value to draw decisive conclusions from certain sensitive material judging a positive d-g-t-l image (whether edited or not, whether scanned or not and with the same respect.), instead of doing it taking a closer look to the original version itself with your own eyes/hands, just as we would all do in our darkrooms.
Nowadays, in my personal case, I do have a scanner (basic a simple) for prints - or any other paper documents -, but when I need a d_g_t_l result for any negative that I must show on any screen I do what I like most, I "photograph" them (now that I have the opportunity), but
In any case it's clear to me what's the quality of the material I am dealing with.
In any case it's clear to me what's the quality I want to show.
In any case it's clear to me what's the photographic idea I want to show.
In any case I enjoy doing both, and
In any case it's quite clear to me which one of the two: The print.
All the best!