Tricky-Dicky If I come into some cash I might try and tempt you. Its a great bike and you have made a true piece of art. Regards joe
Valve stem leakage is normal on hot start with triples and not worth doing if it just puffs a bit on start up, also rear tyre pressure as you have a tubed wheel can be run quite soft to help with the bumps.
Guides are not worn and it has seals on the inlet side, i suspect the oil rings are a little weak...but its not something that will worry me until i start leaving a trail of smoke...spent most of my life on British bikes, as for the rear tyre i am a little reluctant to run less than the 15psi that's in there.