Thanks for the input, it's a fair shout I should probably just enjoy the 911, it went away in December last year for the rebuild with the view I would be keeping for the long term, it's not even properly run yet.
I've got someone at me about a possible swap, there intending getting into 911 ownership and due to mine having been to Hartech it's the prime candidate for the owner of the M3, I know he has spent some cash of late on the engine but at this stage I'm not 100% sure on what, the M3 is a gorgeous car too. He did say if I didn't fancy the M3 he would be willing to buy mine when his was away, not something I had thought about until yesterday when we got chatting.