Do you mean you bought a box of parts and they now want you to pay extra for instructions, or do you mean you're looking at the plans they sell and don't want to pay for that?
"Kit" to me says a box of parts, and that really should come with instructions unless there's only one possible way the parts can go together. (And maybe even then.) For the downloadable plans with no parts, $3 doesn't seem too unreasonable; that's about what any good set of diagrams for a simple project costs.
I bought there $10 awl kit. It's just like all there other turning kits. They said they could print the instruction for it but could not find then at checkout. When I got home I checked. Every turning kit has free assembly instructions except for the awl kit.
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