Jim, I suggest you consider pointing your client to a WordPress designer who could deliver something like https://cardealer.potenzaglobalsolutions.com/home-6/ fairly cheaply.

There are lots of designs around but at $89, https://preview.themeforest.net/item...=impact_radius is fairly powerful and relatively simple to maintain.

Check over https://athemes.com/collections/best...dpress-themes/.

The WP designer could pull out theme colour and logos from the existing site very easily.

Merry Xmas.

Acorn