I need a high E string that can withstand high tension. I need to tune it 5 half steps high, to A, without breaking. Can anyone offer any brand recommendations?

I contacted Infield because their high E string, a .009, was the only one that has come close to lasting at that tension level, but even it broke rather quickly. I asked them if they made anything that was specifically designed for high tension. I was secretly hoping that they had some kind of super string alloy made for just that purpose but the R&D tech said no.

I wrote another string company that claimed that they hand made their own strings. However, apparently, while they might make their own strings, they don't seem interested in answering email inquiries about their strings.

Is there some string company out there that specializes specifically in strings meant to withstand extremely high tension without breaking? Or do I have to invent the thing myself?

Cuz, ya know what happened when I couldn't find an old used resophonic guitar, don't ya? I looked for about 20 years and finally I just made my own and now I've completed three.

I swear, if I can't find some string maker willing to provide me with what I need, I'm gonna start making my own strings and blow these slackers out of the water. Hey, how hard can it possibly be. I made a whole guitar out of junk that I found at garage sales. Making a high E string, that will suit my needs, has got to be a breeze by comparison.