Can I Deduct Land Loan Interest if I Place a Trailer on the Property?

loan

I bought 20 acres in northern Idaho and am carrying an 8yr interest-only loan at $670/month. I am plotting to retire early (age 55) in 8yrs and plot to use this land to build my retirement home. In the meantime, I want to use it as a second home by permanently leaving my travel trailer on the property. Once I do this, can I deduct the interest of the trailer PLUS the interest on the land loan?