Yeah i agree 3d printer kits aren't too hard to but they can take a couple of hours of tinkering for someone who is new at it. If you are going for a 3d printer kit i would say go for a HITCOP 3d printer kit. They are reliable,excellent customer service, surprisingly good quality prints for the price of the printer and it already comes with a heating bed which helps so that the print doesn't get ruined by uneven cooling of the print(although if you buy a kit with no heating bed you can always find one and add it after). Just always try to avoid the Chinese replicas which are generally cheaper but they cause a lot of problems and not very good customer service

Here is a review of the HITCOP 3d printer kit and a dual extruder kit if you are interested in more info: http://3duality.com/best-diy-3d-printer-kits/