The cat's priceless
As for the others, well Chewie is always popular on a Trilogo and an AFA80 should help it. The squiggle not so much, although I have a soft spot for signed cards (so please let me know when you're selling it). I'd guess somewhere around £280-£300?
Luke Poncho is easier. Whilst being one of the easier L17 Trilogos he is a nice looking one, so maybe £180-£200 for him. Wasn't long ago I'd have said £120 :|
Sorry, no good on Kenner. Don't even know what carback that is. 20 something? I'd wait for someone who knows what they're talking about to come along
I'd guess the damage to the sticker is a detractor but looking at tracker a 20E sold for £220 in the last few months.