Small Mountain Bike (St George BS5)

Got this small bike for free as I was hoping to make use of it but it's more repair work than I expected.

Still functionnal, can be used not as but not quite a pleasant ride.

Tyres in good shapes, breaks too. Chains could do with a clean/change. Both gear controllers are partly broken, the plastic housing cracked. Most likely needs changing.

For someone with bike repairs skills.