Those nice Portuguese people from the Praia D'El Rey Golf and Country Club will be setting up shop at the Shelbourne Hotel in Dublin this weekend, offering holiday homes in the sun. They will be selling a range of villas, townhouses and apartments which are being built in an area of rugged natural beauty. About an hour's drive north of Lisbon, the complex offers, among other fine things, an 18-hole top-class golf course. The fair takes place from 11 a.m. to 6 p.m. on Saturday and Sunday.