My concern now is the have a modification for the english qwerty layout so I (and whoever wants) can easily buy the TOHKDB with english qwerty and go to a shop for engraving the other symbols to have spanish (and maybe others) available. I am assuming that this is doable and that I don't need to buy a stealth one and engrave all the keys. If I'd have to engrave all, it would be better to arrange a layout more similar to spanish ones.

@wazd, @dirkvl ?


As said the acute for áéíoú is in the same key as the F, above it. Your proposal of a ÑÇ key would be great to use the free key to put the acute, wich is his natural place in spanish qwerty keyboards. By the way the Ç in spanish keys is on the tight on the acute, so your proposal put it near his usual place for spanish, but not in it. http://en.wikipedia.org/wiki/QWERTY#Spanish