I would recommend wearing a Kevlar body suit and using a sthil demolition saw Jim. That way you could avoid marring the part by cutting safely around it going right through the folks, triple tree, yolk, handle bars and cables etc. Another plus is you won't need to bother about how many kicks the 250 takes to start because all those sparks should prove entertaining enough for any crowd to have them standing well back and enjoying the show allowing you to get on with it..errrrm...just make sure the sthil has a nice fresh spark plug, and because first impressions are so important, I suggest you take time to splash a 2ltr bottle of tomato sauce and perhaps a few bits of roughly chopped offal all over the front and up both arms of the K suit just before you arrive. This should give you all the time required to do a proper job of it...
Cheers
Kim