I had hoped that this would be a simpler conversion, but it sure isn't turning out that way. Articles I've read online did not mention the challenge of finding a spoked hand wheel that would fit a particular machine. Even the aftermarket, low quality, "replacement" hand wheels, don't mention the depth issue, only the spindle diameter. Since I don't have the benefit of several parts machines lying around to maybe find a matching wheel from, I don't think this is going to work.
Thanks for your information, though!