If you put the stand on a 2x6 the rear will be off the ground then you need to cut another block to put under the front of the engine to get the front tire up a bit. Better yet move south so you can just ride year round!
If you have a centerstand you can just take a piece of wood, say 6" wide X 12" long X 1/4 to 1/2" thick and tap it underneath the front wheel with a hammer. That's what I do. Many believe this to be overkill but it's quick insurance. If you had somebody securing the bike while you're tappping, you can do the same thing with both wheels using a side stand.
I have a Norman Hyde centerstand. Of course it unloads the rear wheel but seems to take a fair amount of weight off the front as well. I simply lift the front end a bit (grabbing the wheel) and slide a few sheets of cardboard under the tire. Seems to work fine...
Robert 2007 Bonneville T100 - Ricor Intiminators, Ohlins 36E's, TOR's, Burton DS003 and other geegaws.
Is there any problem with leaving the suspension completely extended for a long time? I have a m/c jack that I can lock in place with both wheels of the ground but I am concerned about leaving the shocks and forks fully extended for several months in a damp garage. Maybe I could wipe down the shiny bits with some kind of rust preventative. What about the seals? Would extended storage in the fully extended position do them any harm? (No jokes about calling the Dr. after four hours please.)