Yes but say I'm buying this for my Dad. I have NO idea about the industry or what is normal or usualy or what 'minimum requirement' means. 

I buy a kit that is described as a kit. Being a numbskull, I would expect it to have the bits that go unless you make it clear. 

Eg

This kit includes:

4 wings

2 nuts

7 bolts

This kit does NOT include:

engine

oil 

knobjockeys

Most of your buyers will not read your listing so you need to make it really obvious :). 

As for your buyer who asked for and received a list? See above items not included. I think you found one.