UHF & Next G connector wall fittings

I wish to have a Next G antenae on a caravan that is removable for when travelling.

The antenae lead I have is fitted with the standard fme male connector for joining to a patch lead. Ideally I would like to be able to fit this connector into its female fme mate on a wall plate of some kind so it is easily attached / detached alomg the lines of a satellite TV fitting that is common a wall plate of caravans.

Obviously I need a lead for between the phone/ intenet device fitted with the male fme and the other end requirs the female fme onto the outside of the 'van wall......but what is there that gives a solid connection as I dont want a floopy end hanging out of the wall to the outside?.

The same applies to the UHF antenae.......some form of solid fitting suitable to adapt to a wall plate of some kind that allows the PL259 from the antenae to join into the lead from the radio coming from inside the 'van to the poutside wall

The more I google the more confused I get simply because I cant work out what these fittings may be called

thanks if you can help me