Scag spindle replacemnt help..

Hello all,
I bought this scag a few weeks ago for $500
I knew it would need spindles when I bought it, they have about 1/8" play.
So no problem, I figure $650 I'll have a perfect machine.
Now a few questions, how do I get the pulley off the spindle without harming it, the pulleys are good and I would like not having to replace those too, besides they need to be removed for the spindle to drop down.
And,...

Scag spindle replacemnt help..