Itll be really easy to park on Broadway. Just be very careful with the signs so you dont get a ticket. A lot of broadway is metered, so dont forget to get one of those too and put it on your dash so the cop can see it.
Also, sometimes the sign will say 1 Hour Parking but then theyll be another sign down the block saying something like Trucks Only 8AM-7PM MON-FRI. So it can be a little tricky. Just make sure you read ALL the signs.
Parking, generally, anywhere in Upper Manhattan (north of 125th on the west side, north of 96th on the East Side) is easy. Avenue's generally have meters but the streets generally don't. Look on the side streets there should be plenty of parking on a Monday afternoon.