Certainly you can contact some of these companies to get quotes but it's so costly to convert classic vehicles that you might as well just go buy a recent electric car like a Bolt or Focus. It's mostly a cost thing. Also you need to consider the cost of the motor / type and especially (and this is the most important bit) the battery pack. If you're looking to install something like a Tesla battery pack you're probably looking at $10k at least for the pack alone. Could be wrong, but worth looking into local shops - there aren't many that have the expertise that I'm aware of outside evwest and electricgt. I'd be happy to hear of more