I know you dont want a manual system but maybe others do so I'll just throw in the Blue Point turnout controller .a US made product that provides manual control via push pull rod or a wire like a choke control (remember those) and includes a built in switch for the electrics .Attaches under the baseboard and gives a nice positive click when engaged .Very useful for Shinohara and Tillig track where no locking is built in.Works on most scales ,great for walk round layouts .
see www.newrailmodels.com
see www.newrailmodels.com