It would be best that you purchase an ATV from a place which sells ATV parts. Such companies would allow you purchase new parts for cheaper rates. The option for second hand parts would also be available to you. Before purchase anything it would be best that you go over the internet and compare the prices. From the internet you would be able to find prices of not just the local market but of nearby areas as well. This would increase the chances of you finding a cheap new part for your ATV.
There are many people who would say that performance ATV partsneed to be new. This is true, but some parts are quite expensive. For instance if the engine stops working, in such cases you would need to replace it. It would be best that you replace it with a healthy second hand engine. A new engine would simply cost too much. Selling your current engine would simply not make up for the price of it. As far as body ATV parts are concerned, well in no way should you purchase brand new body parts. A second hand part would serve you just as much as a new one. The only difference would be that a second hand part would save you money. Cars running around with mismatched parts are an example of second hand parts. Just have these parts painted later; they would give off the look of a brand new car.