Re-routing the clutch line isn't a bad idea, but it certainly isn't the easiest thing in the world to do. We designed our Adjustable Master Cylinder Kit with the boiling problems in mind.
Our kit takes multiple steps to avoid fluid boil: first and foremost being that our cylinder (made by Tilton) flows more fluid than a stocker. The more fluid you're moving, the less likely it is to boil. Our second step is using an unrestricted line - meaning that the fluid isn't held up at any point in the line, and eliminating the need for the "drill mod". Lastly, we had our lines wrapped in a very high temperature resistant sleeve that many teams use in NASCAR applications.
So yes, you can re-route your line - but wouldn't it be much easier to install a Tick Performance Adjustable Master Cylinder Kit and know for sure that all your problems will be solved?