I didn't bother with the other petrol tank as it became apparent that it was beyond repair and needed someone with decent welding skills so I sold it on eBay for 5 times the amount I paid for it!
I quite like the black R65 tank so I'm going to stick with that.
I have changed the handlebar grips to black Biltwell ones as they are in keeping with the overall black look of the bike. I put on a new front brake disk and re-routed the brake hose. I have taken off the front mudguard because I think it looks better!
I also got the wet and dry out and polished the head fins and fitted a pair of peace/fuck off valve caps!