Hi Mike! A 4hp is perfect for the LSRU2. You may also consider bumping up to a 6hp as the 6hp is the same size/weight as the 4hp, just a couple more bucks and a good bit more power.
Hi Ricardo! Pricing varies depending on availability, the manufacturer, and HP of your choice. Please reach out to our sales team at 805-644-6290 or info@boatspecialists.com for more info!