Patriots are pretty rare, and apparently Casita
stopped making them last year, though they still appear on their website. Scamp
also makes a 13' model with a similar front bath set-up, still in production and easier to find. There are number of differences, though, so if you have a strong preference for the Casita you may have to be patient. You just missed a really nice one in Santa Monica.
I agree about upgrading your tug- front bath 13'ers typically tip the scales around 1800-2000# loaded for travel.