Hallo, here are the informations for the ticket payement's and regulation
www.limoneturismo.it/pagina.php?id=76&lang=ita ,but is in italian...
A part of the track, from "Bosco delle Navette" few km after Monesi to "La Cabanera" near Col di Tenda is open at ticket payement' from 8:00AM to 18:00PM to July at september, exclude lunday and thuesday that is closed.
The ticket costs 15 euro for car, it's possible buy it on site
BUT will pass only 80 car for day.
If you, alone or whit few other car, pass from gate first morning (before 11:00AM), you dont'have problem to buy the ticket (brought the exact cash) and to pass.
For the free camping ...i dont'knew exactly but i think that itsn't problem if you camp near traks.
By te forum, at the end of the response form's, it's "a box" with which post one attachment, post whit that your GPX track's, or tracks in another format.
Regards.