Let me explain...

Hopefully, I'll be buying an awesome carbon MTB frame at a a low price. I can't spend too much at the same time, so I was thinking, initially, to use the components of my old Kmart Mongoose MTB with this frame.

Is that possible? It would just be while I gradually purchase higher-quality components. I'm making a big sacrifice buying the frame so I can't initially spend on a frame + all the components.

Thanks.