Depends on the milage of the car. And how long you want it for.
If you want it for 5 years then it'll need welding every year or two in different parts now the floorpan has gone. Wishbones are about £30-£40 a pair and easy to install any DIY'er could do it themselves. Droplinks are also easy if you know how to remove the old ones (grip the middle of them with a pair of mole grips and undo the bolts) Rear bushes are a complete ball ache to do and labour enduring.
Has the cambelt (along with waterpump) been done recently? What's the mileage, is it over 100,000? If the cambelt hasn't been done, there's an extra £200-£400. Then if the mileage is over 100,000 and it's on the original clutch you'd be lucky to get another 30,000 miles out of the clutch before a replacement is needed and that's another £200-£400 job depending where you go.
Work out if it's worth sinking money into.