Hans,
I'll keep my eyes peeled for attachment, parts, etc. I think I've only seen one of those over the years. For some reason, built-in anything was not very popular in the Detroit area. Growing up, everyone worked for the auto companies, and the idea rammed into all of us was to always have the newest, latest model. Things that were built-in were too hard to change.
I knew people who got new stoves, refrigerators, etc. every four or five years. Not because they needed them, but because the ones they had looked out-dated. This was a very Detroit approach to consumerism!