Hey TC, just done a refit on my 82 Custom as the PO had decided it did not need a centre stand.
Can't help with the pipes on or off question or the best cleaning method but can with avoiding skinned knuckles.
Removal is as simple as pull split pin and draw out stand axle, stand drops to ground and you unhook the wee swinger thing with spring attached.
That's the easy bit.
Not sure if the 750 side stand will hold the weight of the bike when you tip it slightly to work on the main stand but it did on the Custom.
When you want to replace the Honda stands (most I have dealt with have been pretty much the same) the biggest secret is replace the swinger and spring
first , this will save at least half a pint of blood and much swearing.
I have found it much easier to slip the axle in last, the spring is too strong to attempt to attach stand then swinger.
It takes a bit of effort to line the stand up to wiggle the axle in but it will work.
Hope some of that helps and at least cuts down on blood loss.