In my opinion, if i should sell my kit collection on ebay:
Buriki kit: 200/250 euro
samurai 2 kit: 200/250 euro
wild ambition kit: 200/250 euro
samurai 1 kit: 700/750 euro
roads edge kit: 400/500 euro
xtreme rally kit: 500euro
beast busters kit: over 1000euro