The rod is in great condition for a collector, and you may get the best return for your investment
by selling it on eBay . On the other hand, I think it would fish very well. This is one of the rods that made Fenwick's reputation. I would probably match it with a light spinning reel with 8 lb test line and some 1/4-1/2 oz lures.
By the way, the cardboard tubes are rather fragile and easily water damaged. In some respects the tube is the most collectible part of this kit. Keep the original tube, but if you use the rod a lot, buy a sturdier tube for day to day use.