600 bulks in my hands now,looking for a reliable FDM 3D printers, any recommanded?

[Roberts_Clif]

It's the only one I know of that has all the critical prusa I3 design components.
1) direct drive extruder
2) bed side support rails
3) dual z-axis motors

Personally those are the main points I loook for in an i3.

ADIMLab Updated Gantry Pro 3D Printer

As I look around an see that most of the 3D Printers with a large print area are all going to a single Y-Axis monorail support.
Y-Axis monorail support have a lot to be desired causing more problems than are worth, will be agreeing with curious aardvark choice.