I know Monsters were not really designed to have the extended bit at the back originally and it is only there to satisfy the legislation of some markets it was sold in but .... and this is the do I? Don't I? bit... as Yorkie says, the earlier bikes with Frameus Intactus are becoming rarer these days.
I know it is possible to reverse a 'tail chop' but it will never be the same as the original coupled with the fact the original frame colour is notoriously difficult to match- I say difficult, I mean impossible- just ask Albie who I am sure will be along shortly to verify how hard he has tried to get anywhere close on his lovely restoration project.
Talking of being along shortly, so will Dirty no doubt to tell you to get the hack saw out and chop it!!!
However, you could do as I have done and compromise it by loosing all the dangly bits, repositioning the indicators (you could always fit a combined tail light) and make (or buy)a new number plate bracket et voila- the bonus is you don't get a wet back when riding in the rain either:
