It's 1984. They only made them that year.. The Fantics went mono shock the year after. It's a 250cc. Not 300cc
Fantic went bust a few times. Although Fantics are still made, it was another company who purchased the name so no parts available from them.
A good few trials specialists such as In Motion plus others in the UK + places in France and Italy seem to keep most items and post around the world. A few bike breakers also have parts.
https://www.inmotiontrials.com/
http://www.fanticmotor.asso.fr/r02.htm
http://www.bosisiomotori.it/home/
http://www.equipementmotard.com/index.php?cPath=219
http://www.r2wtrials.co.uk/html_files/bobwright.html
Attached is a Fantic 300 riders manual, Non English & a parts list...
Someone may have a English version but this should help.
Tyres, inner tubes, oils, throttle cables, metric nuts & bolts, chains and other common items should be available from most local trials dealers in Canada as the same on many model bikes.
Have fun...
Fantic 300 rider manual.pdf
Fantic_300_Partslist.pdf