Hello
not a good day for my s2 went for mot and failed on rust

1 offside front (chasis to floor) vehicle structure has excessive corrosion seriously affecting its strength within 30cms of body mountings

2 nearside front (chasis to floor to inner sill) vehicle structure has excessive corrosion seriously affecting its strength within 30cms of body mountings

3 offfside and nearside rear (floor area) seat belt anchorage prescribed area is excessively corroded

4 offfside and nearside rear (chasis) suspension component mounting prescribed area is excessively corroded

5 nearside rear (seat mounting)seat belt anchorage prescribed area is excessively corroded

6 near side rear body or chasis has excessive corrosion seriously affecting its strength within 30cms of body mountings

7 nearside rear (outer sill) suspension component mounting prescribed area is excessively corroded

The sunroof has lots of rust around as well and bit of rust around the bumper

can this be repaired or am i better of looking to reshell or cut my loses and get rid off. Please help as i am not a mechanic and do not have any welding skill as such. any bodyshop people advise what sort of costs i would be looking at.
This is the car in question