Pretty much the advice I would have given..... although if you don't go auber for your coil, @710 coils has nice ones as well (when they are in stock. I notice he doesn't have many right now). Should you buy both a banger and a coil from Shane, he will fit the banger to the coil for you. Really good customer service.
I went with the rdk200 solely due to the cable out location.
I would not go with any controller that does not have a rotary dial for temp control, those tiny little arrow keys are BLOODY AWFUL compared.
My main dab rig for rosin is a DNail SiC Halo as it is so much easier to maintain than quartz or ruby, it is also cheaper on DNail guise anyway.
I love my 710coils axial heater coil with a quartz banger with ruby insert for flavor I just find the SiC Halo easier to live with and it is not that far behind ruby with flavor for me.