I am a relative newbie to the world of SW.

I've just taken possession of a second-hand Kenwood R5000 comms receiver. It
looks like a very nice piece of kit. It's not really practical for me to rig
an outside antenna system at the moment, but I have heard that you can get
SW antennas designed for indoor use. Can anyone recommend any? I am in the
UK.

And if anyone has any thoughts on the R5000, feel free.