check the cali craigslist every now and again, as i know there are some floating around there. also the canadian CL.
i was gonna swap one into a 240 a couple years ago, Would be pretty straight forward as they are about the same(given the differences) to the rB series engines. if you check the aus patrol forums and do some digging youll find some scattered info on tuning one. there is a guy floating around that had built one for off road and if i remember correctly it was up to about 300hp with even more tq. just gotta dig for the info, its there. Aussi and German guys can help you find one pretty quick.