Another vote for the Makerfarm kits. I got a usable print the first time I used my 8-inch i3v. Note that they ship the RAMPS board preflashed with firmware, and Makerfarm provides default configuration files to use with Slic3r for the combinations of filament and hot ends that they offer. Both of those were key to my getting the printer running without having to work through countless settings I wouldn't have understood at the time.