I like the idea, but am not sure where you'd wear it. I have seen ads that suggest really cool guys wear white dinner jackets all winter long in Bermuda and Palm Beach- and maybe Cairo. I wouldn't know.

As a practical matter, I think the contrasting facings help the problem of a white shirt with a white jacket. The other way around that is to have the jacket made in something like "winter white" or cream color and be sure your shirt is blazing chalk white. It might also make the jacket a little easier to keep clean, though nothing beats bleaching white cotton.

If you are going to invest your own time and energy into making this thing, why not start with a cotton chef's jacket and see how you like the general look?