Here's something to consider. What would you be able to sell one of them for?
I have no idea if your budget would allow it... but what if you bought both of them, shot both of them, found the most accurate one of two.... and then sold the other one. (either a private sale or back to the dealer you bought them from)
I'm just wondering if one of them might not shoot well at all, or one of them is a real tack-driver. Having the chance to shoot them might make your decision so much easier. You would be investing the cost of ammo, and whatever the difference in purchase and selling price to find out.