It all depends on the effort (quality and time) you would like to put in. If you put in 1-2 hours of work in the beginning, work your way up to 3 in years 6-7, then ramp up to 4-5 by year 9-10, you would not only be able to play 95% of all cello repertoire with precision but also have confidence in your playing. For background, I have been playing the cello for 11 years. Years 1-3 were just me getting situated with the cello and establishing basic fundamentals. Works included were pretty much consisted of suzuki books (like dance rustique, etc etc). After Suzuki book 6, I was transitioned away from suzuki and went on to Goltermann, Bach 1, Haydn C, and Saint Saens. This was probably years 4-6, where I put in the hours into developing strong technique in preparation for years ahead. Years 7-9 were a bit of a downfall (in terms of speed of progress). I did work on a lot of new repertoire like the 3rd mvt of Dvorak, complete Haydn D, etc and was able to get through them but I wasn't able to put in the # of hours and my intonation lagged behind. I did make a turnaround for years 10-11 however, with the proper hours put in to refine my playing from a "block of wood" so to speak to a fairly smooth one. My active rep currently includes the complete Prokofiev Sinfonia Concertante, complete Bach 6 and 3rd suites, complete Brahms F major sonata, mvts of the Kodaly solo sonata, Rozsa's Toccata Capricciosa, and other bits and pieces.

I absolutely believe that you could achieve the same path as I did, so long as you achieve proper fundamentals and not get discouraged during the grind from years 1-5.