Really depends upon whether or not this includes removing the old ones.
For the ones on the second story, I would figure it will take 20 minutes per leaf (includes dealing with the ladder, relocating it, removing the old, etc.), so 1 hour 20 for the 2nd story.
For the lower level, I would figure 15 minutes each, so 1 hour total first floor.
= 2 hour 20 total + trip time (I know it is your neighbor, etc). = 3 hours
Loaded hourly costs are about $100/hr (insurance, trucks, tools, mgmt, etc.). Supplies are negligible - maybe some tapcons for the brick attachment.
$300. $250 for the neighbor discount (no trip time, etc.)
If the 2nd level is difficult to get to, it might be $400.