I have used a couple different part number front shocks with the jag IFS, on the F1s I used Monroe PN 32022 which is a shorter version of the factory jag shock, and then I used a set of pete and jakes, think they are PN 1084. Both work fine but I like the double eyelet style of the pete and jakes better for serviceability since working room is tight with the shorter shock. All my mounts are home made.

 

I used the shock of a opel astra

 

those opel shocks look like a good fit, but cant find those on rock auto LOL...Do you have a monroe or gabriel or similar brand part number so I can look up the specs?

 

Here in Aus most guys use early VW beetle shocks .

 

Monroe 23908