Disassembly work for new sports center on Helsinki / vantaa border

We opening a new indoor ball sports center at Vetokuja, Vantaa. Before the end of January, as soon as possible in fact, we need to do some demolish / disassembly work of a: - partition wall (28 meters wide, up to 8 high and 20 cms thick, made of concrete board, insulation wool, metal frame ) - concrete staircase (3 meters in diameter and 5 meters tall) - temporary wooden structures. we want to start the work asap. we are welcoming contractors to the building this week to take a look before quoting, we can supply much more information if required via email / whatsapp.