i need to make 2 three-step binomial tree's in excel for American futures options for crude oil and price the options. i need hedge portfolio approach to price American call futures optionand i need risk neutral approach to price equivalent American put futures option.

current price/spot price $69.06

strike price $75.966

risk free rate 5%

volatility of one yr crude oil futures price is 45%

time to expiration 1 year

after, i need to use Black Scholes model in excel to compute prices of European call and put futures options based on the same data and thus essentially compare the results (binomial american call/put verse Black Scholes EU call/put)