Het dids, I don't see you sand blasting the engine w/out a complete strip-down. If you do decide to go the whole hog and get it sand blasted, ther's a good sand blaster guy in Newhaven (East Sussex). I had my cyl head, barrels, upper case and lower case vapour blasted as well. It comes up real nice after vapour blasting. Cost 180 quid. Then a bloke on the VJMC club advised to prime it all and paint it with Simoniz 5 wheel silver paint. So I gave it 2 coats of primer and 5 coats of silver paint. I had the alternator cover, final drive sprocket cover etc polished. Hopefully that should do the trick. There are some good chromers in the Shoreham/Portslade area "The London and Brighton Chroming Company" that have a good reputation. But they aren't cheap.