I finally have hot-air, and I soon realised I shouldn’t have put it off so long!
The Saike 909D is a very economical unit, and also includes a bench power supply and solder station.
It is not perfect, but I’m nevertheless very happy with the unit and it does a great job at hot-air reflow.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub