Hi, got some precious photos, shame that i cannot post the video (whoever wants to see it, pm). Basically, it is not as i previously thought, the stand comes up pulled by the spring, but first you have to disengage the lever from a clip-plate, which is located in the chain-guard (it´s in the parts list 66-7771), see photos attached. That clip i assume is "just" for secure the lever from accidentally release the stand, vibration, "security" measure. That pic with the part listed is actually my bike before restoration.
Once the stand reaches the ground, give the bike a small lift to give an extra notch on the stand to make it stable. The same applies when you want to pull the stand up, before you pull the handle.
The red bike below didn't have the original plate to fix the lever, but the idea is the same.
To pull the stand up, at the same time that you pull the handle out of the clip, it disengages the ratchet from the stand, and the spring does the job for you, and you put the handle back on the clip, engaging the ratchet again.
To pull down, i assume is by foot (as the spring is pulling the stand up, the other way around as i thought), engaging/diseng. the handle back and forward, haven´t tried myself yet.
Will of course put some leather belt or so attaching the stand to the bike.
Cannot thank you enough to:
Brett Reilly at Mike's Classic Cycle Spares in Australia
Barry Porter in US
If anyone has photos, videos of this bike, i´m a candidate for pm.
Thank you so much, will post again when this is in place.