How would I go about modding this case?

[GGizmo]

Years ago I bought this case;

https://www.overclockers.co.uk/cooler-master-elite-330-midi-tower-case-black-ca-155-cm.html

It's been an 'ok' case over the years, though on reflection I should have bought a more expensive one at the time.

I'm thinking about updating some parts inside the case, so I want some more airflow. The side panelh as a fan mesh section on the side, which I use for one of the fans.

I was wondering if I would be able to add 1 or 2 other mesh places? Even without fans I think it would help with clearing the heat from the case.

How would I go about doing that? What kinda tools do I need?

Are there places that do modding panels?

Also are all side panels the same size? If I buy a panel off a modder site already done and just replace my side panel with that?

Thanks for any info you guys can give me!

 

[GGizmo]

Thanks mate, no problem.

I just noticed that there is also a max length for cards too. Looks like at some point I need to buy a different case.