Well, it took a while, but here's a little update.
What was on the programm today, was the suspension... well at least I was able to install half of it anyway
Starting with the attachment things for the springs :
As you may be able to see ; I have replaced the paper rolled things by alu tube.
Then, I found out I had lost a piece of paper, containing a few parts, luckily they were simple parts that are easy to copy.
And finally, I got to make and install the springs themselves :