Maglite Torch help

Hey guys,
I have a five cell maglite with coroded batteries jammed inside.
I've had the torch 30+ years so aside from the cost of a replacement I'd like to to fix it anyway.

I was hoping to be able to remove the globe & switch and push the batteries out, but it seems the switch has to come out the far end - where the batteries are.
My next line of thought is remove the bulb assembly and run a drill bit through the switch to create a hole to put something through so I can push the batteries out.
Is there a less destructive way to get the batteries out - I've been spraying silicone spray in there all day and banging the end of the torch on a block of wood but that's done nothing.
Cheers

Batteries are shot so drill a hole in them and screw in a fat screw. The apply pull pressure and see what happens.
Worst case remove the batteries in bits.

One issue will be the corrosion will have run its way up the wiring toward the switch, and will keep going eventually destroying the wire.

I have done this in the past, unscrew the head ( obvious) remove the rubber switch cover insert Allen key down into the switch block remove the grub screw, remove the end cap with a suitable piece of solid round timber used as
punch hammer the entire lot out of the barrel 90% the switch block will need to be replaced neutralise any alkaline leakage with lemon juice then baking soda spare parts here
https://www.sheldonandhammond.com.au/

Mine was a 4D cell, same problem but, unfortunately mine was too far gone.

Found that this was a help as mine was similar.

https://m.youtube.com/watch?v=G8wmQKgOk7U