How can I import morph data in unity and link it with text box in unity

I have made different head sizes in 3D max, like head of size 54 cm to 59 cm and i have made a head as my base head and linked all the heads with the base head through morphing in 3D max. I want to import this morphed data in unity. I have found it can be done through megafiers is there any other way its my msc final project and i want to find a way of doing it on my own. Then i want to make a text box in which i input the head size and it shows converts the base head to the inputted head size. please help me i have less time left.