The improved workbench resource requirement doesn’t make much sense to me. Here’s an example:
The Improved Carpenters workbench requires 100 bricks.
The Improved Blacksmiths bench also requires 100 bricks.
The Improved Furnace only requires 50 bricks.
When you look at the graphics for each of these stations the Blacksmith’s Bench and the Furnace look almost entirely made of bricks. The Carpenter’s bench only has a base of bricks that looks like maybe 40 or so bricks max.
Bricklayer specialist here i do not use t2 benches unfortunately anymore, t1 and then Jump directly to the t3. Last time i have used a improoved furnace the Cost to make it was like 650 raw stone + some other Material.