Causalien

Hi, I am getting ready to mod out a vintage bicycle, but am confused on what exactly I have.
The decals on the bike tells me that it is a Gitane 1971 tour de France bike. The simplex derailleur and parts tells me that it is most likely TDF. However, I have not seen the fork crown in the 1971 models anywhere. Is this a super corsa?

I looked up this particular fork crown and found bikes called Ralein Gran sport, which looks exactly like this. What kind of frankenstein am I dealing with here?

Here are the pics:

Derailleur shot
https://www.flickr.com/photos/ultracrepidate/4867226756/
Registration sticker
https://www.flickr.com/photos/ultracrepidate/4867229526/
Fork crown
https://www.flickr.com/photos/ultracrepidate/4867237372/
Break pad
https://www.flickr.com/photos/ultracrepidate/4867234404/
Misc
https://www.flickr.com/photos/ultracrepidate/4867240116/
https://www.flickr.com/photos/ultracrepidate/4866616243/

Thanks in advance.

repechage

No monster, Vagner crowns were cheap, not bad but used on any number of bikes, the Gitane might not even have a Vagner, just one that looks like it, with a chrome decorative cap.

Look for a Raleigh Gran Sport.