That is an easy fix!
The condensation is an way fix, open up the back, hairdryer for a minute or so, grease / Vaseline on the seal and close up.
The scratched one. Get some wet and dry 400, 800, 1200 sand paper, bucket of water with detergent and then sand down through the grits.
Then get some hand glaze from Halfords and a bit of elbow grease and it will be good as new.