That sounds like a lot of money.
Was this response as a result of a quotation from their service department or just a "salesmans bluff" to get you to replace the 3200?
If it were mine, I would pay for a report from qualified service people. It may cost an hour labour time but at least it should be accurate and will give you a much better idea of what will need to be replaced and the likely cost. You can then make a decision and give us a better idea.