An angel speculates FBR outcomes, page-3

I don't like the swiss army knife concept. Bricks and Roof tiles will never be laid on the same day because the roof needs to be installed in between.
Therefore, if the truck drives away, the one that drives back should be separate and distinct. Add roof tiling capability to a block laying machine adds a lot of complexity into a limited space. You would need twice as many machines which are more complicated than 2 simpler machines.

Also, if tiles could be installed but one market was predominantly colourbond, you would have extra expense in the machines that don't even use that functionality.
The best way would be to have matched fleet proportions, such as 6 block laying to 4 tile laying machines, in a different market (such as cyclonic regions) you could have 6 block laying to zero tile laying.
The other concept for a machine is a slab griding or screeding one, so that the slab levels can be accurate before HX starts.