If you’re going to replace the western stand - you might as well look at knocking majority of the rest of the stadium structure down. All the critical services for stadium operations go back to the western stand.
It also has structural ties into the northern and southern stands. Whilst those ties were easily constructed during the build, they are not easily removable for demolition. It will impact both those other stands to an extent.
The below photo might be a bit hard to decipher but what is highlighted in red - is where future provisions were made to extend capacity via the stadium corners.
View attachment 111288
Corners have concrete columns, concrete beams, concrete slabs, heavier duty structural steel and other construction elements support another tier.
The awning and its supporting columns (also in the corners) would need to be completely removed and re-worked. Thankfully there’s inground pylons not far from the stadium’s corners perimeters to be able to build new awning supporting columns from.
Issue is back in 1999-2000 the stadium was estimated and built for around $280m. Inflation has it around $560m in 2026 but even a 60% re-build/re-work which includes full knock down of western stand, partial knock downs of northern and southern stands plus full removal of awning and construction of corner expansion provisions likely pushes costs above that.
There are other, more cost effective options such as less structural re-work to utilise corners and retaining awning (and therefore awning supporting columns etc). This can easily jag more seating to push capacity to 60k. That option/s (and varying similar) didn’t take into account the current global situation, so the feasibility (cost wise) would need to increase by 15-25%.
How it unfolds, remains to be seen.