What motorcross bike is the best?

Hi everyone i been trying to figure out what size bike is for me, im 5 foot 3 1/2 and just turned 19 last week i want to get a bike i was thinking should i get and cr85 expert or crf150rb or are these to small for me, i havent seen one in person yet the places around dont have the 150rb in unless they order it and cr85 bikes are off the market unless you buy used. my question is what should i get or should i get bigger? the thing is i cant reach on 125 or 250 and i only rode a pw80 before and i had a ton of quads from blasters to 450s. so help me out everyone i want to get into racing aswell is there a cl for me ?