Whats model of solid combustion blower plate?

My Advance does have those plates, seems to be just one solid one that’s welded into place. I can’t access the heat exchanger.

I have a OLD p61, serial number 000667 that I am doing a partial rebuild on such as blower motor, distro blower, auger and auger motor and circuit board. burn pot looks perfect but not sure it has been replaced or not. The stove has not been ran is quite a long time but when I plugged it in it ran but the auger squeaked and I did not start a fire in it. I have contacted local authorized dealers techs but I think they know less about it than I do. They say the stove needs to be hooked up and vented before they come out. Whats the point then? Most of the parts seem available that I will order for it and there have been some upgrades. My concern is I dont know the stoves upgradable capabilities and I want it to be as efficient and trouble free as possible, what all should I be doing to the stove that makes it as close to new as possible. Thanks.

5:37 You dumped fines into the hopper!