I checked out that one on utube from diesel toys. $25K not including the FJ! They use the Toyota 1KD-FTV. Now to figure out how to get my hands on one of those engines and pick up a used FJ with a manual tranny. They do the conversion on the 2006-present FJ. I guess unless I'm planning on huge mileage would be much better off dollar wise just to go with the gasser. Not as much fun though.. I read where Toyota is planning on a diesel in their Tundra so maybe there is a diesel FJ in the near future.