I did this last august with my 85 shadow 700 and it handled it wonderfully fully loaded with a passenger after 100 miles getting there. DON'T by any means touch your brakes once you reach the bottom! you could fry an egg on them they get so hot, so check your brakes before the ride and don't constantly ride them. I actually shut my engine OFF and coasted down in gear for most of the trip down. turn the kill switch back on and it starts instantly was the most effective way I found to do it.
for the trip up, try and give yourself some distance and go your own speed, my bike was geared in a way it did not want to go below 15mph because it just did not have the low end torque.