I recently got a HMV Little Nipper, which I had recapped & upgraded the power cord, It now plays great, Despite the cosmetic damage to the case, This is all Complete, Except it's missing the rear cover, I have tried my best at making a Replacement from junk, I think I did a good job!.
Here's Some Pic links:

http://s1191.photobucket.com/albums/z472/Hdxfh/?action=view¤t=IMG_3308.jpg

http://s1191.photobucket.com/albums/z472/Hdxfh/?action=view¤t=IMG_3307.jpg

That should work fine, I actually have had one same colour for several years.

There are alot of them out there and I have fixed several, one particular "Black covered) audio transformer type in these has a very high attrition rate.

The good thing about a back like this is that it stops lifting via the top. This is becoming a problem as the cabinet material becomes more brittle.

Onething that helps crack the back is where the cable exits on some. There is a 90 degree bend that can lead to stress on the back.

If I fit a three wire cable (& I have some 6.5mm) and it looks like doing damage I will move it into the big hole & use a reversed gland.

Not original, but a lot safer & less risk to the cabinet.

Marc

Update: I have now fitted the original Back cover to the radio, I have also discovered a great way to remove the paint marks, Hairspray actually works quite well, let it sit for a few seconds and scrub off with a cloth, it'll remove the paint!, additional stubborn marks will require a little scrape off with your fingernail, then wipe with a damp sponge to remove the hairspray residue, the result is a nice clean paint free surface!

Pics:
Image Link

Before:
Image Link

After:
Image Link