I fall in the category of guys that think the liver toxicity of orals is greatly exaggerated.. but still something you have to take into consideration. There have been plenty of people that have used TBol, and Anavar at the same time.. enough I would say to consider it a normal oral stack. And the doses do not differ much from what he is looking to run. 6 weeks of a cycle like this is not going to kill him or cause irreversible liver damage.
Wrong thinking. Don't give rationalizing as advice.