some more photos on the suspension in a bit more detail
pic 1+2 shows the length needed for the brass bar (this is not accurate and doesnt need to be so long as they are long enough to go through both sides of the ally channel)

pic 3 is me cutting the bar with my hi-tech new tool which cost a fortune (jnr hacksaw[X(][X(])

pic 4 is all the parts for one side cut,filed and ready to hammer into the new arms

pic 5+6 shows the length of the 2 arms that will sit opposed to each other at the back next to the idler arm, they are longer than the others and this will become apparent when i've figured out what the hell to do with them as the room out the back end is getting real tight

pic 7 is after the hammer

pic 8+9 show the milling process to give the inner arms clearence from each other (about 2mm)

pic 10 a side by side of the plastic arms 1st not milled 2nd milled

pic 11 old plastic arm with spring seat milled into it

pic 12 shows the spring sat in the seat