well
it's been an eventful couple of days...
The seller dropped it off at the shop to do the roadworthy, and I was to go and get it yesterday morning. Unfortunately it failed

The front master cylinder needs a rebuild kit, and the steering head bearings need a look at. Hopefully it will only need a good clean out and regrease [it has been sitting for 6 years or so, so I'm hoping it's just the grease has hardened up...]
So today I pulled the master cylinder off and ordered the kit and the reservoir and the three screws that hold the lid on. One was missing and the other two were stripped. Well, that's what I thought at first... The missing one was only missing it's head - it had been completely sheared off! What's left of the bolt is firmly stuck in there - I've got it soaking overnight in WD40 for now.
The things you find when you take the tank off:


I wonder what someone was thinking???
Could they not get the proper BMW flasher relay?
Ok, but why not get a socket to suit the new relay at the same time and mount it in the same place???
Why just leave it swinging in mid air wrapped up in tape???

Now, another question:

How do you guys go about refreshing up the appearance of the alloy there? Any tips? I want to get it going and registered etc first, but then I'll be wanting to make it a lot more presentable. What's the best way to clean/polish up those flat surfaces as well as in between the fins etc?