Ignition block problem

Hi I hope someone can help me out, I have a K100rs 16v '91 bike, and the other day, when I put it on the stand or take a right corner the bike stops, and then restarts again. After messing around with the wiring under the ignition block, I found the problem, it looks like the bottom part of were you put the key in is broken, and shorts when you turn the handlebars, the white plastic bit where the wires go in to be precise.

I have found a few ignition blocks complete with keys on the internet, but, I noticed that to get the key block out, there are 2 bolts that I haven't a clue how to get off.

Hope someone can help me, because, my BMW mechanic has asked for an arm and a leg to change the ignition block with a new one ....... :? :?

Thanks for your reply, I thought I would have to use the drill

I'll have to see if I can find the VIN, could come in useful. So, looking at the link you put in, I could only change pos. 3, if I can
find one at a good price, because, I'm not sure about getting an old one, could give me problems in the future ....... :question:

I'll go get some bolts in the mean time.....

very nice Think I need an IKEA alen key for that little b.........