Hello, I'm getting a Solcat 18 ready to sail. I need new masthead sheaves, and I haven't been able to find anything close online. I was hoping someone might have some ideas of where to look. It's 1.625" diameter, and it's only .313" (5/16) wide, which seems to make it hard to replace. I was going through some stuff I bought on ebay, and it looks like (what I think is) Hobie 16 jib block has a sheave that might work, but I only have one and I need 2. Thanks to anyone who has any ideas.
Steve