A 75 year old man presents to the GP with bilateral leg pain after walking 200 metres. This is relieved after standing for one minute. He has a past medical history of Type 2 Diabetes Mellitus and stable angina. He has a 10-year smoking pack history. He is currently taking Aspirin 75mg, Bisoprolol 2.5mg and Metformin 1g.
Based on the likely diagnosis, what is the most appropriate initial management option?