Ray, I agree with Snow, Its usally 3x your money. 1 to repay yourself. 2 for your time 3 foryourself.

I make things all the time or order and resell them. With ordering its 3 xs your money.

In the end it amounts to what ppl will pay you for your item.
I like Jan Idea.
But maybe have the person buy the yarn for you first.