Well I just bought genuine Rothmans nose cone, side panels, seat left and right and light surround for just over £1100 shipped in the UK.
Yes you can buy the panels seperately if you find a good supllier but the prices are pretty much what you said. Then again at least once you shelled out the cash you have the proper kit that fits properly. Sure you could get copy panels for less (probably half the price) but it wont fit as well, wont look as good and you will always know its not genuine.
I guess the choice comes down to what you want to acheive from your bike...one day I want mine back to as near new condition as I could get it, this was the cheapest, easiest option to do this properly. If you want a bike to look good but dont care how genuine it is then you could get your repaired and resprayed.
Leigh