I like that style of Kenmore too. It was made by White for Sears and I believe it takes standard needles. Make sure the bobbin case and at least one bobbin is there. It says it works so you're probably good there. It uses top clamp feet. The ones for White machines are easy to get but don't expect to find a walking foot or FMQ foot for it. Does the store have any sales or will they negotiate? The price seems a little high to me but price isn't the only consideration either. You'll get the money out of it quickly enough in enjoyment.
Rodney