I think 1 sounds more natural. Number 2 is acceptable with "also," but it could be ambiguous. I could interpret "as" to mean "at the same time" so that number 2 means "Tom received a warm welcome at the same time his wife also received a warm welcome." Here's number 3: Tom received a warm welcome, just as his wife also did. I think this is a bit more natural than number 2, but it could still mean "at the same time." To avoid ambiguity, I recommend number 1.

(1) of course, and it is difficult to concoct sentences where (2) FORM can be acceptable

For some reason, both seem unnatural to me. I'd say "and so did his beautiful wife"

how about '... and his incredibly ugly wife did too; drop 'as' and substitute and - not quite sure either is 'inverted' but the original does put the inherited verb first, if that's what you mean.