I would be concerned with if the trainer would hold if they saw fit to put a weight limit on it. Over by a little I wouldn't worry about but you exceed it by a 100lb and that isn't taking into account the bike. On a whim I looked up the cyclops and they don't specify, only that their trainers are tested up to 300. and I believe it would easily hold more while wahoo claims that the kickr is good to 250 out of fear the strain a trainer can put on a frame. Looking at their design and with a sturdy bike I'd suspect they'd be the best option as they look like the strongest design that integrates with a bike. If I was really worried about the weight, I'd buy one of them, cause while I know that the old fashioned trainers can easily hold your weight the new smart trainers are a game changer for getting on and riding.
Alternative is that I don't know what your winters are like but investing in cold weather gear or even a fat bike and ride through the winter.