Electric bass sounds in the same range as a double bass, i.e. the E-string is 41Hz. The lowest note on a traditional cello is the lowest C that you can play on a bass, i.e. the lowest C on the A-string of the bass, i.e. 65Hz . When I want to tune my cello in EADG, its E will be at 82Hz like guitar, so I will forego the lowest minor third of range of the traditional cello.
I have tried using the upper four string of a six-string bass flatwound set, and then tune them to fourths on the cello. But the problem was that the bow was not able to properly grip the strings. I'm afraid this will happen with most strings that are not made for bowing.
Right now I'm doing this (from low to high):
My E-string is a cello G-string (heavy type), tuned down a minor third.
My A-string is a cello G-string (light type), that is tuned up a major second
My D-string is a cello D-string (medium type)
My G-string is a cello A-string (heavy type), tuned down a major second.
I'm not dead set on EADG, but I want fourths.