New Vehicle for Farm Use 60% Business Use first year then 30% thereafter

Hello I have purchased a new Pickup Truck (Over 6000lbs) that I expect to have 60% business use this year. 

For years 2 through 5 I expect the percent of business use to be less than 50% most or all years.

How is the best way to handle?

I paid $34k for the truck and my AGI will be over $150+k this year and next

Thanks!