The red fairings and rear fender/number plates you have on the bike now are from a 2000-2003 XR50, as seen here
https://www.partzilla.com/catalog/ho...0r-a/fuel-tank and here
https://www.partzilla.com/catalog/ho...2/xr50r-a/seat
The XR/CRF70 always had separate rear number plates and fenders.