I have a stock 05 wrx. I am planning a build that is going to take some time because I don't just have money flowing out of my a**. I originally thought about modding my current engine but at 120k I really don't want to go any further then exhaust intake and AP, so stage 1. I want to keep the car I have but I want to make the swap to an Sti motor. I know it's is a costly process but that is something I am willing to accept to get what I want. I have done some research and roughly priced new and used Sti motors used are complete but have 60to70k miles on them and the new are well new but are basically just core. Meaning block and internals but no bolt on components. So my question because I have mechanical knowledge and skill but am new to modding cars which direction would be the cheaper route? Go new and buy all new components or go used and completely tear down and start over. I personally feel reliability with new but completely rebuilding a used is basically the same thing so which would be more cost friendly?