Sierra Bj 92 brakes V/H

Hello together. I brought my Sierra 2.0 Clx (Bj 92 with 74Kw) to the workshop this morning because my brakes have sanded. Just came the call back. Except for one wheel all brakes were there. The front of the cylinder is rusted and does not stand back by itself. Ergo blocks burned and slices over. In the back the same problem with the drum brakes. In addition, one of the Holmes is probably rusty. According to the first estimate of the workshop probably about 1000 Euro. If I now consider that I I’m glad that it has come up now. It doesn’t happen that a complete braking system for the Sierra has to be delivered cheaply? so long TTime (Kreis Heinsberg)