a bag full and then two more is what i have, i think, don't make me go out and count them. I took it that there are six sections, and then two more number six's, i may be wrong.
I used mine for the first time, not at that height, my 34'hybid managed too, but at least two of us could carry on working.
I'd feel more confident about using it again.
I also got to use those things you sent me wce, i was very grateful for that so if you ever need any business tips ..... ask ewan, no- if i can help at all i will.