Well, I took the plunge and converted. Can’t go back now 
And it seems, for the most part, to have worked. Check out the gallery style in this post. What do you think?
Still, not all the thumbnails got converted - and some images have an orientation problem. I have to look at that. And then, because images “wrap” on a line now, so does the text that follows an image! That makes for an odd effect, I have to correct that.
All told, not too bad an upgrade. I’ll work on getting those things fixed, while I now start converting movies.
Ooh! Here’s an even better example - Dick’s “How To” on the 318 oil pump…