Setting up the big number

Today I worked on the whole number as much as I could, The parts are big and awkward ,I ended up with less than half of it built,just the bottom of the O,.

This is the most important bit as it sets the angle for the entire construct,and next time it will be easier to stick together,I marked the positions with spray-paint on the back. It took a bit of adjusting but i think i got it square and parallel.