Whether or not you make the quilt and everyone does their own adjustments to everything, I would go for the pattern. So what if there is a grandma making a bid (you don't know that for sure). Go for it. You may not be a grandma but that doesn't mean you can't make one for a grandma. Just do it. Some people buy things just so others don't get to have it or use it. Then it goes to waste. Just think how many people you could make happy with that pattern.