Ok I see !
I will probably do the job the most simple way
I see I have two option
1) the most simple : buy a kit all included , but it s not cheap: about 200€
2) take a random stock pump from a car ,remove the connector
And wire it the following way : first to the inline fuse, then to a relay , and then
The relay should be wired to a pressostat so it can stop working when the vacuum reservoir of the pump is full. It will cost me way cheaper, but also requires a lot more work to prepare the electrics.
