Mmm, I'm still a little apprehensive! I have read the Haynes & Autodata versions of how to do it.
The things I have concerns over are: Being able to undo the cr/shaft bolt, removing the cr/s pulley (I don't have a puller), not thrashing the pistons into the valves while working & getting the timing set correctly.
I checked out some of the setting tools on fleebay, some claim by using you can replace belt without loosing the timing - I presume these are false claims then?