Good on you, any excuse to collect what you enjoy is a good one. A good start would be a FWB 65 and a 300s, then onwards to the modern ones. Both my wife and I are returnees to shooting after a 20+ year break, we shoot with modern PCP's but did not sell our old ones when we changed over the years, my FWB 65 was bought new in '72 and I still have all the air pistols that I bought over the years. My wife started Rifle with an Original 65, then a 66, then a very special shortened 75 with a shorter reach trigger which got her into the GB ladies squad. All her Originals went but we'd love to get that special 75 back. She still has her LGR Junior which was supplied as a prototype, and now uses a LG300 xt Junior.
It will be an interesting piece of research to even track down the winners guns over the years and not that easy, best of luck.
Robin