A 60-year-old man with no previous cardiovascular disease is assessed in general practice. His total cholesterol is 6.2 mmol/L, HDL-cholesterol 1.0 mmol/L, and systolic blood pressure 150 mmHg. He is a non-smoker with no diabetes and his 5-year absolute cardiovascular risk is calculated at 18%. According to Australian cardiovascular risk guidelines, what is the most appropriate lipid management strategy?