I own an old Edwardian house (circa 1900) in San Francisco.  In one of
our bathrooms, the tank cracked and we had to replace it.

Unfortunately, the toilet was sitting on an 8" rough-in.  As I
understand, 10", 12" and 14" are the standard rough-in measurements
now.

First, is there a supplier who will provide an 8" rough-in toilet?

If not, what other solutions are there to replace the toilet in a stylish way?

I'll bet that you probably wrote this, but if not:

http://www.homeressources.com/forum/read.php?f=4&i=1761&t=1761

I've come up with two ideas. One is to build a bit of a pedestal (to
be wrapped in tile I guess) and use an offset flange. Viola, a regular
old short toilet has the new higher seat level. The second idea is to
cut a three inch alcove into the wall (properly headered of course)
and recess the tank partially.

You couldn't just replace the tank, say with one mounted high on the
wall and a pull chain, and keep the commode part? It would be quite
authentic.

As a followup to my question...

Thanks for all the comments everyone.  There wasn't any good solution
since the back wall of the toilet had a window (and thus a high
mounted tank would block the window).

So I had to bite the bullet and pay a contractor to move the pipe two
inches.  The 10"-inch rough-in toilet fits now, but it was an
expensive fix!