What kinda sums are we talking?![]()
Cruising, you'll get close to 20mpg especially if you add a bit of pressure to the tyres. Hit traffic, and you'll get low teens. Those tyres are about £220 each if you pay full whack (Avon 'Turbosteel 70' 235/70/R15 103V with whitewalls are the original equipment, we have those on the front with Goodyear Hydragrip equivalents on the rear). You'd need to carry a couple of half litre bottles of Castrol HSMO in the boot - there's a special cubby hole provided for it - for driving serious distance because the rear suspension hydraulics leaked even when these cars were new, never mind after 25 years and several replaced spheres!
Though he's more than welcome to! I've got a real ball-ache of a job to do straight away as well, with re-mounting the interior panel on the drivers door 

And we both appreciate nice things being said about the work that we've put in!