Joystick repair

I’m intent on repairing a Konix Speedking joystick.

When you open it, the trigger switch can be accessed and replaced.

However, I want to replace the direction switches too. Trouble is they’re in a box.

My question is : do I use an expensive tool to get into the box? I was thinking a Dremel. Then, rebuild the box with new switches? I suppose I could use a 3D Printer to make an enclosure.

I’m confused - where to from here?

This video shows the switches in better detail, check about 4:30:

https://www.youtube.com/watch?v=3r2t9QD-RvA

The switches look very much integrated into the structure of the board & housing and look like they’d be extremely difficult to replace. I’d approach the project with the intention of repairing or readjusting the existing switches.