Best of luck, and I wouldn't get too hung up on the minutiae, since it can be impossible to comply.
See if you can spot the flaws in the UKARA retailer process:
http://ukara.org.uk/#retailer
1. Applicants must have verifiable commercial premises.
2. Must retail Airsoft products as one of their main product lines.
3. Must have a business cheque account.
4. Shall have a business insurance policy relating Airsoft to protect the retailer, employee
and the customer with public liability.
5. Must provide
2 Trade References from Airsoft Retailers or Wholesalers.
6. Must have all the first 5 points before making an application.
So... you have to be an established trader before can become a trader? As near as I can make out, they expect you to flog two-tones until you get going - or to sell RIFs at your own risk -
then apply for access to the UKARA database.
Also, how on earth can a business insurance policy provide public liability cover for customers? I do not think that means what they think that it means.