Thank's a lot for all your replys !!
I'm ok with Goldfish's version
just wana make a precision , I have put those curve there on the left back because the original track (1:1) is like this !
But never mind , I'm surly going to make this adaptation, it would give this :
I made a bit longer , 17.28m and 17.16m inside 5.00 / 1.75m