To make sure... I would recommend opening the cover, finding the control board...where the communication wires are plugged in... and get the model number. I'm pretty sure it would be a CCC2 controller. And buy that thermostat. It has a RJ11 port in the back...You will probably find two comm wires plugged in. Most likely, if it is your front unit...a wire coming from the silver leaf module for control, and another daisy changing the units. If it is most rearward unit...one wire is coming from the other units..and the second wire is most likely going to the basement for you AGS... But, I would have to see...since I am speculating ... No Silverleaf on my rig.
Anyway I just wouldn't want you to buy a Thermostat and it be the wrong one. I know Newmar was installing the 10 button CCC2 in 2016... so I think you're would be the same... But, for all I know there is a special CAN BUS type of controller installed specifically for silver leaf.
Since you feel it is silver leaf, I'm guessing you have ZERO units working now??
Might make sure the control fuse is not blown. (DC power). That comm cord connections are clean and secure. And I don't know if there is a relearn process in Silverleaf...but if ours looses it's memory...we have to hold down two buttons on the Thermostat to get the controlling thermostat to learn the layout...what it's populated as far as A/C, AGS, Heat Pump, which zone assignment, etc... If you're forgets that,,, it might not know what it's talking too anymore.
