Structure survey & Scanning

Hello everyone.. I need suggestions in term of the right and efficient tools (hardware & software) and perhaps methodology on how to survey this. The structure is some kind of a chimney of about 70m of height, and the objectives are , to compare to design (ie perfect cylinder)  and, if possible, to detect deformation in the case when the chimney is under pressure (some kind of blockage causing it to deformed-suspected) versus at rest state.

Thank you & best regard