2010 CRF 450 motocross bike swap for 2 stroke 250

Description:

Here is my Honda CRF450r, the bike is in exellent condition and well looked after. I clean and oil it and clean air filter after every ride and it is serviced (oil and filters) after every 3-4 rides.the bike starts and rides like it should and sounds perfect. it is standard and ready to go.
my reason for getting rid is i want a 250 2 stroke of similar age.