When I bought share in a taildragger, the insurer set their own criteria for the experience required to fly the aicraft solo. I forget how many taildragger hours they wanted, but I didn't have them, so they specified I had to do 15 landings in the aircraft with an qualified instructor.
Have you seen your Insurance Policy? If not, you should see it before you fly the aircraft to make sure you are aware of all its provisions.
good luck - its a great feeling to have mastered the dreaded taildragger!
tp