Hello Julius, click the links mate and they might be able to help you, they will also give you the legal explanation about your rifles.
Briefly, a person in the UK must have a place to use firearms before a license is granted though. I don't know if this applies to firearms from Europe though.
With regard to going out hunting in any form, it is best to get to know people in the area and make contacts. Perhaps these organisation's can help.
http://www.basc.org.uk/
http://www.countryside-alliance.org/
For Frikadelle and Bratwurst, go to Lidl mate, they are not too bad.