OK, thanks to everyone for helpful suggestions. After dancing around a bit, trying out some solutions which failed, I am now a proud owner of an Iron Horse IHHD 2518L compressor (4.1 cfm at 90 psi, 3.2 gal tank, made in Middle Kingdom). It was on sale at local Lordco and House of Tools for $119. It comes with a hose and a bunch of shiny things to connect this to that. As you can see I have never been near a working compressor.
Herein lies a bit of a problem as the instructions are, let's say, sparse. And conflicting when you look them up on the net. Referring to parts and switches that are not clearly identified and identified to by different names in the plan etc. I know I should be a man about it and ignore the instructions (as I did with my recent purchase of Remington 870 - turned out fine) but it is a tad disconcerting.
I have put off the trial run till tomorrow.
Any comments on this particular piece of equipment are welcome.