You have a combination of old breadbox side pods and newer unico front bumper and driver’s nose cone.
That kart looks to be an old Track Magic, they’ve been out of business for a long time. You might be able to find some NOS from a vendor sitting on a dusty shelf, if not look on ebay, or post an ad here at the WTB section.
Otherwise install a new body kit from new karts, adapt the mounting tubing, and you’re good to go! You can turn it into a CRG, Mad Croc, Praga, Tony Kart, Top Kart, or anything you want, and all the parts and graphic kits would be available anywhere. Good luck. FastFreddy.