tipmann 98 id say £40 ish if working, the bottles if in date you can sell £20 each depending how much life is in them, Ego looks like its missing the original barrel hard to say what year it is 150- 200 if it works all ok with the freak inserts, The karnivor 250-300 depending if it works leaks condition hard to say from the photo tho, Shocker i think from the pic ive seen them up for sale for £80 and still not sell so id aim for that price or slightly cheaper depending on condtion board working etc
Hope that helps