I have a non-working ZX81 which can be had for the cost of post and packing. No keyboard on this one (I used it for the template for the new membranes which are coming very soon.....).
The case itself is in good condition - I don't have a PSU any longer, so not sure what problems it has (think it just would not display on my TV). You can even have four new rubber feet with it for £1 if you need them.
