Finally the redraw of the firebox is complete. I ended up redrawing the lower section too because no surprise the existing one didn’t match the redrawn main firebox.

At the minute they are all separate bodies and I haven’t mirrored the lower firebox yet because I need to work my way through and check all the sizes before I combine the upper firebox into one body and the lower one into two bodies, left and right. It’s much easier to make alterations when they are separate.