What the LBS guy did was not to bend the stays back to their original place, but to pull them apart and put the wheel in. So you'll have to pull them apart like that every time you take the wheel in and out. It can be done, but it's a PITA. You can have a framemaker cold-set it back to it's original position, and check the alignment and dropout faces. If you otherwise like the bike and can get the seller or shipper to pay for this, it would be the way to go.