Randy is advised by his physician to install an elevator in his residence, since he is afflicted with heart disease. The cost of installing the elevator is $8000 and has an estimated useful life of 10 years. He installs it in January 2011 and it increases the value of his home by $5000. Disregarding the limitation based on adjusted gross income, how much of the cost of the elevator may he take into account in determining his medical expense deduction for 2011?