High Tension Flatwound / Tapewound Short Scale Strings

[therealting]

This is a somewhat niche question - I am trying to find out what my options are. I currently have custom-made Newtone phosphor bronzes on the lowest two strings of one of my fanned fret acoustic guitars, 105 and 85 gauge. The 85 gauge string feels great, the 105 is a bit floppy.

I could ask a Newtone to wind me a 110 and a 115 to try, but I am also finding the phosphor bronze strings very squeaky, so thought I’d see what my flatwound or tapewound options are.

The low E string is 26.8” scale, and as it stands I’d need it to be 30” from ball end to where the string thins out... but I am prepared to modify the headstock if needed which would allow me to 33” or to change to a bass tuner  

Thanks in advance for your expertise!