I had got to this stage a while ago.
I had done the blocks and have now joined them in a row.
I was struggling measuring each thin 2"x 61.5"strips and I had a brainwave-- join the 3 together and then measure the correct length and cut it! Why did I not think of that before?
So this is the total so far
So I will get back to more sewing and hopefully a further move on.