This turbo setup was mine, and never had any issues. I removed it to go bigger with a gtb2260vk. It's probably got about 10 or 15k miles on it at most.
google "T25 flange" and you should get the dimensions you desire..the outlet side of the turbo is 3 bolt, and not 3"x1.5" thats for sure..
if it doesnt sell soon, the temptation is going to brake me, and ill buy it..