Can anyone advise me, I'm looking for a set of plans to build a rocket in my spare time, any advice on obtaining some would be gratefully recieved

Keith Callaghan has a couple of interesting designs, just do a search on this forum and you'll find his website (bluelightening??)

This is Keith's website.
I think he is the only designer to really try to help amateur builders. His 'Hazardous' design looks good, but unproven as yet!Other designers - Phil Morrisson, Ian Holt might provide their designs if you ask but you will have to work out the plank profiles etc. Or maybe try Laurie Smart or Kevin Driver who build boats to their own designs - they might help with part construction or something like that.