Here's an idea... Go to Sweatshop in Reading and buy a pair of shoes... Try them out and take them back... Wait for them to turn up in the clearance outlet place over the road and re-buy them at a knock-down price
I have never have a problem with running shoes. Despite buying them on line without gait analysis and trying a variety of brands and models, depending on what is in the sale, no pair of shoes has ever caused an injury.