Very nice firearm and caliber. While I don't own a P64 Radom, I own 5 different pistols in 9 X 18 Makarov and find it to be a very good round. I believe Classic Firearms has them in stock right now for $229.00, plus shipping and FFL fees if necessary. You can ask for hand select for another $20.00. It is Curio And Relic eligible so if you have a C&R license you are all set.
It would serve you well as a pocket pistol. And Hornady makes critical defense rounds for it. It has a little more poke than a .380 and a good deal less umph than a standard 9mm.