Just went in a Home Bargains yesterday, and they had a couple of Revell kits in:
1/32nd Bo 105 helicopter starter set in '35th Anniversary of Roth' special colour scheme. £10.00 (RRP = £22)
1/24th Mercedes racing saloon car (300SL?) starter set. £10.00 (RRP = £20-odd)
I don't intend to buy either of these, but if anyone who can't get to a Home Bargains wants me to pick one up for them, I'd be happy to. Drop me a PM.
Also, it might be worth checking the stores in your area to see if different stores have different models. They're either in the Toys section or the Crafts section which is next to the Stationary. Stock levels are pretty low so look carefully: they're easy to miss.