I to scoured the internet looking for the #7 bushing without success.
So I placed a backorder directly with Lyman on June 3, in the hopes that going directly to the source would be quickest.
This footnote was included on my email order confirmation: "Please be aware that this order contains at least one backordered item. All products will be shipped to you as soon as they become available".
My credit card has yet to be billed. Price with shipping and tax was $13.95, which I thought was reasonable.
I'm still waiting "patiently".