You don't need a puller, if you are able to raise the car enough to get underneath of it.

To get the damper off, remove the three bolts and knock it off from below/behind. I use a long pry bar (jumbo Snap-On screwdriver) with the tip placed against the back of the damper as far inboard as possible (place the tip so that it's resting right alongside of the damper hub -- don't beat on the outer ring of the damper!), then bump the handle of the pry bar with a large rubber mallet. It may be a bit stubborn, but you should be able to get it to pop off this way.

Once it's off, rotate the crankshaft so that one wing of the 3-winged damper hub is at the 6-O'Clock position (this will orient the other two wings at around 10 and 2 O'Clock), and it will give you the clearance you'll need to pull the Opti straight forward off of the engine. Clean the hub and damper thoroughly of all rust, etc, and smear a VERY thin coat of anti-sieze on the mating surfaces as you reinstall it (not enough that it'll get slung up onto the belt, etc), and you'll probably have no trouble getting it off again next time. Be sure to orient the damper to the hub such that the alignment marks match up as you reinstall it.

Be well,

SJW