Payment Methods, Gateways

Hi everyone,

I'm in the process of implementing a eShoppingCart into my new application.  My application showcases no more than 10 products, so basically what I need is to implement the "cart" and payment gateways.

Now, I was wondering if nopCommerce Payment Methods-Gateways module can be implemented separately. If so, could someone tell me what's the best way to do this. Do I need to download the whole build and extract/implement what I need?

Thanks in advance.