The Nuby 150 (153mm motor to motor) is a tough little quad frame designed for 3" props. The main feature of the frame is that it's designed around the HS1177 FPV camera, so you can have the same image quality as your larger quad. The base plate is 3mm which will be near impossible to break given the frames curvy design. There is a hole at the back of the top plate for an SMA conector if you want to go that way, and holes in the bottom plate for a standard flight controller, though I prefer an afromini. 

The recomended setup is 3100KV 1306 motors HQ 3x3x3 props on 4S or something similar. There are many other great combos out there including 1407 motors which make this thing a rocket, but note that this frame will not take 1104/1105 motors due to the hole spacing. 

4x 20mm aluminium standoffs are recommended to connect the two plates. You will also need 8x M3 bolts to use with the standoffs.