Square piano strings

[Dave Doremus]

I'm wondering if anyone has a source for softer music wire for an 
1840 or so Chickering & Mackay square. I'm considering Rose C, but it 
may not be strong enough. I'm not thrilled by the idea of the softer 
stainless steels, it just doesnt seem appropriate. Any advice? Also, 
how about a source for the thin woven cloth, both red and white, they 
layered for the dampers in these instruments? Modern damper felt 
sticks out like a sore thumb, especially if you want to keep as much 
original material as humanly possible. Thanks as always,