Let me give you three proposals that you might consider:

1. The simplest thing to do would be to just reshape your present hammers and needle them down. Your Renner hammers are rock hard so needling would take a lot of time. After sufficient needling, I would relevel your strings, re-fit the hammers to the strings, and touch up the regulation. Softening intrinsically hard hammers is a hit-and-miss proposition. Sometimes the effect last only a year or so; then they pack down again and need more work. It's uncertain. I could do all this in about two to three days. Cost: $400 to $500.

2. If my old Baldwin made hammers would indeed fit your piano, I could replace your hard Renner hammers. Then I would reshape the Baldwin hammers and do all the re-regulation and voicing needed to bring your piano to good performance levels. Since you wouldn't have any costs for replacement parts, the charge would be only my labor. It would take me perhaps 4 days to a week to work everything out. Costs: around $700.

3. I have one more suggestion of a more lasting nature. Before I left the [Baldwin] factory, I purchased a new set of SF-10 hammers (bored and shaped) to use as replacements for my own piano sometime in the future. I still have them. They were made in 1987 when Baldwin was still making their own hammers. Also I hand picked them from several sets of production hammers available at the time. I would sell them to you for $100, a fraction of the cost of a new set. I would have to glue them to new Renner shanks which would cost $450.00. By replacing both the hammers and shanks, you could make a lasting improvement on your piano that would greatly extend its working life. New shanks with good leather on knuckles would greatly improve the performance of the piano. Of course this is a far more labor intense process, 2 to 2 1/2 weeks to complete. Parts and labor would approach $1800. Something to think about. I could show you these hammers sometime if you wish.