Q:

How much overtension can I put on a guitar string before it snaps?

In relation to this question 
Which strings do I need to play these notes?
I have calculated that I will have to take the highest string upto 150% of the maximum stated Newtons (I have tried calculating D-addario pl007 to pl0095, they all need 150% overtension), and the next string needs 135% overtension.
(All the other strings are around 100% of maximum tension.)
Will this automatically break the strings, or can I buy the strings and see what happens?
Is there an alternative type of string that might handle higher Newtons per linear-mass?
Thank you.
Clarification: it isn't a guitar.  It looks ugly but it works.

A:

As Carl said, you may need to rethink your plan. The strings may cope with that much overtension.
The neck of the guitar is quite likely to be catastrophically damaged! Bent, or possibly snapped.
Just use an instrument designed for the higher range, or possibly play much higher up the neck - this may sound sarcastic, but people do make 36 fret guitars, such as the R36 Turbulence from Gary Kramer guitars:

