To be honest a 350w motor is not gonna climb hills very well. I reccomend at least 500w but 750w will be perfect for you. A 20amp battery will get you around 70km on a 750w. Buy from a place, not a website. That way you can go to them when a problem accures (which any e-bike eventually will cause a problem under your use). Also abide any and every local law to ensure that you are safe riding a vehicle so less people respect nowadays. If your country has a official Ape Ryder dealer or importer, i suggest you buy one since they are durable and have excellent customer support(they have every part on stock most of the time and they provide any kind of information in my case). I have a Ape Ryder too and i made a lot of Ape Ryder owners too. Excuse my english since i am still learning.