I bought an Allibert cabinet with 3 mirrored doors about 40 years ago which has given excellent service. However, unfortunately the plastic hinge on one of the doors broke and the door fell off. Is it possible to buy a new replacement door? I should like 3 doors ideally as the silvering has gone on the other 2 doors but I would be happy with one. The dimensions of the door are 25 x 52 cms and it is a left opening door for the medicine cabinet. The other 2 doors are right opening doors with slots for inserting the shelves.