I have been interested in building a 3d printer for about a year now. I have been seriously looking at options for about 4 months. I have looked at buying 3d printers like the Ultimaker, and others at various price points. I have looked at kits, and designs. I really like the Prusa i3 design. What are the disavantages and advantages of sourcing the parts from various places to purchasing a kit from like makerfarm?

I have about 13 years of experience in technical work in matininance, calabration, programing for robots, lead screw steppers, ect. In the past I have help build cnc routers and casting telescope mirrors.

thanks