Figured Id reply here in case anyone else needs the answer. Im mid process on fully restoring an older 2bo. And when I got it, as most of them come, no bricks inside, nothing on the bottom. Took quite awhile before I got ahold of the right morso guy, but my local Hearth store got me in touch with the right guy. So, there are side bricks for this model and back bricks. (If you want I can post the morso part numbers when I get back to the shop tomorrow). You need 4 side bricks and 1 back brick, Morso still makes them all. As for the bottom, which took alot to find out. There is a bottom burn plate that is raised about .5” its cast iron. Morso also still makes it, if you can get a rep that knows what they are looking for. And also same with woodsmanpartsplus. Ill save you the effort, here is the link(this unfortunately is not linked from the actual 2bo parts page, I had a rep find this and email it too me)-
https://www.woodmanspartsplus.com/product.aspx?p_id=637374
Next step was getting the bottom plate to fit with the bricks. Took about an hour of grinding the bottom plate on the edges that were too far to get the bricks to slide down on both sides. (Took prolly up took 1/4in to3/8in off part of the sides with angle grinder w grinding wheel)
I used a marker to mark the edges of the plate that needed to be taken down and did one area at a time, check for fit, then keep adjusting.
So yea, it is set and perfect now, all bricks and bottom liner. Will take some pics tomorrow to add to show you.