Hello mate - yep, I've got one of those (it was a bit more than £30 though Pete!).
It's in fantastic condition (almost NOS!) and ALL original apart from the tyres. All the stickers are good and the brake shoes, pads, seat and grips are all un-worn!
I was only going to let it go if I could find someone who had one as a kid (i.e. someone who would love it for sentimental reason), as they don't go for big money. So, let me know if you fancy it, as I can you let you have it for far less than it'll cost you to restore your one.
They sold in 1983 and were available in chrome with black, red or blue parts. They had a different gusset to the one in your pic though...they were normally like a mongoose style double gusset...
Anyhow, let me know dude - it's a lovely little bike and I'd like it to go to a good home. Let me know if you'd like some more pics...the one above was from Epic where it appeared in the show n shine.
Cheers
Dave