My thinking behind the swop is the SP1 front end is quite a chunky and bulky front end and the older fireblade looks a little less bolbuss and guessing not as heavy... or am I wrong with regards to the weight saving?

The SP forks aren't set up properly and need to be rebuilt as they are pretty spongey. I know getting them set up will help loads as well as getting a new shock at the rear too, but keen on reducing some of the weight as much as possible.
So if I go through with this then I'll have an SP1 front end up for grabs including clipons and top and bottom yokes at some stage.