And only if you're also about 40 years behind ladder tech - notice the stepladders in the "A view of the main repair facility" photo?

They're nonconductive fiberglass.

They're stronger than wood, lighter than wood, don't need to be oiled/varnished, don't require cutting down old-growth trees, and aren't susceptible to moisture damage.

You can buy them exhaustively tested, mass produced, in whatever quantities you require for a couple hundred dollars - probably an order of magnitude less than these artisanal wooden ladders.