I'm planning my electrical work to my detached garage and my electrician said I only have room to run max 60 amps to a subpanel in the garage, not 100. Ideally I would like the convenience of the HPWC plus a 14-50 outlet for backup and compatibility with other cars, but I wouldn't use the two simultaneously. Would it be against code to have both a 60 amp breaker and a 50 amp breaker in the 60 amp subpanel? Or would I be able to install a transfer switch to choose which one is powered? Of course I can just install the 14-50 and save the money, but I'm curious.