hello! great page you have here
I have this 2 tanks, piping will be run differently. Was thinking to replace the wood with steel beam (I beam/ H beam?) followed by a platform and monkey ladder. Size estimate about 1500mm X 3000mm x 5000mm (L X W X H). Question is:

1. need to dig my get the foundation right (4 holes)
2. how will the pricing be?

Alternative suggestion welcomed =)