Dana 60 ff rear disk brake brackets?

[Acorn]

Howdy all, this is my first post. This site is great! Every one here is so knowledgable and willing to help. So I'm hoping someone can help me.
I've got a '71 c20 2wd with a dana 60 full float rear end that has 7 bolt for the brake backing plate. I am trying to find out where to get some bolt on disk brake conversion brackets. I have seen some on eBay but they look like they are made for for a four bolt backing plate and am not sure if those will work. I am not looking to buy a kit, just the brackets. (I can get the rest of the parts cheaper locally)
Any and all info will be greatly appreciated!
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