I'm wondering how I might indicate the enharmonic changes in some way. The usual method of small bracketed noteheads will just make matters worse, I think.
I was thinking of possibly bracketing the whole note.
Other options would be some sort of symbol above the note, I suppose. Or perhaps a line from one note to the other?
(You can't gliss to the same note!

Actually, I quite like the line, though I suppose the angle does suggest "down". Unless anyone has any better ideas?