Does such an animal exist in Thailand?

Found one at American Standard about 11 years ago, but haven't seen one since.  The big problem is the pipes are placed so the midpoint is only 10 inches from the wall..or 250 mm, and 99% of the western toilets they sell are for 300 mm, known as 12 inch.  So even if you do find the flange, you may not be able to use it.  I even moved one out a few inches, but involved busting up the floor.  Believe it or not, the 15 THB bag of white powdered cement works for years, and a coating of silicon on top.