What is the cost to draw up a will, living will, power of attorney and health proxy? The assets are under 5 million and everything is straightforward

This varies by location and lawyer.  Please also keep in mind that while your wishes may be straightforward, the law often is not.  This is especially true when it comes to securing care during your old age.  At any age you are more likely to become disabled than to die.  If you have made it to 65, you may well live another 25 years (on average) but 6-8 of them will include physical and 3-4 of them mental disabilities.  To provide for your care as well as gift others after you die, consider seeing an attorney who practices elder law as well as estate planning.  You can locate one using the Find a Lawyer function on the website of the National Academy of Elder Law Attorneys (www.naela.org)