If you have no kidney issues and are a healthy, virile young man I'd worry more about BP and lipid profile. That has single digit HDL and 200 LDL written all over it lol. Take all the necessary precautions hit it hard, in and out, and you should be ok.
This is the exact type of cycle I would consider GW. I have the same concerns about animal trials as others but dollars to donuts it would keep your lipids in an acceptable level.