[Orphan51]

I have to have a clear out of stuff for a variety of reasons and this includes some Toku things
I was just wondering how people price up things for sale and work out postage?
Is there a price guide or something and how do people choose what to sell first?
Also where is the best place to sell
I understand the last half of that question may seem dumb given the marketplace here but as I am in the UK i just thought i should ask

Most of the things i have to sell are Kamen Rider Drivers + gimmicks or Sentai Changers and Weapons and Im at a loss of how to price them for sale as well as postage costs

Any help would be appreciated