Been there, done that back when they were current tech. Very easy, just be sure to blow all the chips/spirals of metal out of the case before closing it up. Use aluminum pop rivets to replace Apple's steel rivets you'll be drilling out when you button it back up.
I'd call it a DuoDock Plus+2. Looks like someone replaced the Plus logic board with one from a Dock II which replaces everything deleted for Plus model that you you could wish for with your 210 in the VCR. [
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