looks like you got the right guy to do the job for you. Very very nice, This is the first time I'm seeing 1000P high temp acrylic wax on Black. It's popular with metallics like silver because it gives depth like adding another layer of clear coat while preserving the metallic shimmer.
If you want a long lasting trim coating for the bumperettes, the black plastic around the windshield wipers and the plastic on the soft top trim
try the Poorboys Trim restorer
http://www.detailcity.com/poorboys-trim-restorer.html
it lasts a very long time and it doesn't wash off when it rains.
If the weather gets above freezing any time soon try washing the black car with Optimum No Rinse. Its easier on the paint than a full on hose and suds wash. All you need is a bucket of warm water with an ounce or two of the No Rinse solution, ideally two bucketts, and a few microfiber towels. Or you can dilute it in a spray bottle and wipe down each panel instead of using a dry duster. Follow up with the 425 to seal the wax from the elements and you won't have to wax for a really long time.