What they are worth will depend on all sorts of things. If they are totally original, then the best place to sell them will probably be eBay I would have thought, given that stuff is sold as seen, and there seems to be demand for vintage Quad stuff. If you put them up on a hi fi site like HiFi Wigwam, or Pinkfish then people are going to be asking questions about when they were last serviced, and TBH compared with more modern kit they will sound pretty pants. The 33/303 combo is probably going to be at least 30 years old, and the FM2 older than that by a fair bit. Kit that old is probably going to need looking at - caps replacing etc etc.The ESL's are still thought by some to be amongst the best sounding speakers ever made, but they will have to have had a recent rebuild to be worth any significant money and, personally I wouldn't touch a pair of ESL 57's that don't have a recent service history from someone like One Thing. (I use Quad ESL's BTW, partnered with Quad valve amplifiers).
Anyway, as to values, have a look and see what these things fetch on eBay. The SME 3009 will probably be better off sold separately from the T/T I'd have thought.